| 单词 | period |
| 释义 | period (once / 40 pages) 1n 2n A period is all about defining when something begins and ends. Class periods usually last about forty-five minutes. Following the last food fight, there was a period of relative peace in the school. You know that dot at the end of a sentence? That's a period too. It means the sentence is over. You might say to a class forgetting to use this essential form of punctuation: In a short period of time, you will learn how to put periods on the end of sentences or I will put a period on this lesson. WORD FAMILYperiod: periodical, periods+/periodical: periodically, periodicals USAGE EXAMPLESThe Indians held a lead for all but the last minute of regulation, according to Walker, and lost their edge in the overtime period. Washington Post(Jan 02, 2017) Precipitation during that period totaled just 38.79 inches — roughly half of the normal amount. Los Angeles Times(Jan 02, 2017) A Preston Parks 3 for the Bulldogs tied the game at 91 with 1:14 left and forced the overtime period. Washington Times(Jan 02, 2017) 1 1n an amount of time a time period of 30 years hastened the period of time of his recovery Picasso's blue period Syn|Exp|Hypo|Hyper period of time, time period Bronze Age (archeology) a period between the Stone and Iron Ages, characterized by the manufacture and use of bronze tools and weapons Iron Age(archeology) the period following the Bronze Age; characterized by rapid spread of iron tools and weapons Stone Age(archeology) the earliest known period of human culture, characterized by the use of stone implements Eolithic Agethe earliest part of the Stone Age marked by the earliest signs of human culture Paleolithic Agesecond part of the Stone Age beginning about 750,00 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC Lower Paleolithicthe oldest part of the Paleolithic Age with the emergence of the hand ax; ended about 120,000 years ago Middle Paleolithicthe time period of Neanderthal man; ended about 35,000 years BC Upper Paleolithicthe time period during which only modern Homo sapiens was known to have existed; ended about 10,000 years BC Epipaleolithicmiddle part of the Stone Age beginning about 15,000 years ago Neolithic Agelatest part of the Stone Age beginning about 10,000 BC in the Middle East (but later elsewhere) Great Schismthe period from 1378 to 1417 during which there were two papacies in the Roman Catholic Church, one in Rome and one in Avignon Age of Reasona movement in Europe from about 1650 until 1800 that advocated the use of reason and individualism instead of tradition and established doctrine Elizabethan agea period in British history during the reign of Elizabeth I in the 16th century; an age marked by literary achievement and domestic prosperity Victorian agea period in British history during the reign of Queen Victoria in the 19th century; her character and moral standards restored the prestige of the British monarchy but gave the era a prudish reputation 8 May 1945the date of Allied victory in Europe, World War II 15 August 1945the date of Allied victory over Japan, World War II Caliphatethe era of Islam's ascendancy from the death of Mohammed until the 13th century; some Moslems still maintain that the Moslem world must always have a calif as head of the community Christian erathe time period beginning with the supposed year of Christ's birth Baroque periodthe historic period from about 1600 until 1750 when the baroque style of art, architecture, and music flourished in Europe Middle Agesthe period of history between classical antiquity and the Italian Renaissance Renaissancethe period of European history at the close of the Middle Ages and the rise of the modern world; a cultural rebirth from the 14th through the middle of the 17th centuries Italian Renaissancethe early period when Italy was the center of the Renaissance technological revolutionthe transformation from an agricultural to an industrial nation Reign of Terrorthe historic period (1793-94) during the French Revolution when thousands were executed Harlem Renaissancea period in the 1920s when African-American achievements in art and music and literature flourished New Dealthe historic period (1933-1940) in the United States during which President Franklin Roosevelt's economic policies were implemented Reconstruction Periodthe period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877 Restorationthe reign of Charles II in England; 1660-1685 Great Depressiona period during the 1930s when there was a worldwide economic depression and mass unemployment Regencythe period from 1811-1820 when the Prince of Wales was regent during George III's periods of insanity test period, trial period a period of time during which someone or something is tested time framea time period during which something occurs or is expected to occur hoursan indefinite period of time downtimea period of time when something (as a machine or factory) is not operating (especially as a result of malfunctions) uptimea period of time when something (as a machine or factory) is functioning and available for use work timea time period when you are required to work time offa time period when you are not required to work bouta period of illness hospitalizationa period of time when you are confined to a hospital travel timea period of time spent traveling timesa more or less definite period of time now or previously present timean indefinite period (usually marked by specific attributes or activities) elapsed timethe time that elapses while some event is occurring continuance, durationthe period of time during which something continues calendar week, weeka period of seven consecutive days starting on Sunday midweekthe middle of a week field daya time of unusual pleasure and success life, life-time, lifespan, lifetimethe period during which something is functional (as between birth and death) lifethe period between birth and the present time lifethe period from the present until death millenary, millenniuma span of 1000 years bimillenary, bimillenniuma span of 2000 years occupationthe period of time during which a place or position or nation is occupied pasta earlier period in someone's life (especially one that they have reason to keep secret) shelf lifethe length of time a packaged food or drug will last without deteriorating puerperiumtime period following childbirth when the mother's uterus shrinks and the other functional and anatomic changes of pregnancy are resolved lactationthe period following birth during which milk is secreted time of lifea period of time during which a person is normally in a particular life state calendar day, civil daya day reckoned from midnight to midnight festivala day or period of time set aside for feasting and celebration day, daylight, daytimethe time after sunrise and before sunset while it is light outside forenoon, morn, morning, morning timethe time period between dawn and noon dark, night, nighttimethe time after sunset and before sunrise while it is dark outside nightthe time between sunset and midnight nightthe period spent sleeping nighta period of ignorance or backwardness or gloom evethe period immediately before something eveningthe early part of night (from dinner until bedtime) spent in a special way hebdomad, weekany period of seven consecutive days fortnight, two weeksa period of fourteen consecutive days weekenda time period usually extending from Friday night through Sunday; more loosely defined as any period of successive days including one and only one Sunday Indian summer, Saint Martin's summera period of unusually warm weather in the autumn yearthe period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun school, school day, schooltimethe period of instruction in a school; the time period when school is in session twelvemonth, year, yra period of time containing 365 (or 366) days yeara period of time occupying a regular part of a calendar year that is used for some particular activity semesterhalf a year; a period of 6 months bimestera period of 2 months Olympiadone of the four-year intervals between Olympic Games; used to reckon time in ancient Greece for twelve centuries beginning in 776 BC lustruma period of five years decade, decennary, decenniuma period of 10 years centurya period of 100 years quadrenniuma period of four years quinquenniuma period of five years half-centurya period of 50 years quarter-centurya period of 25 years quartera fourth part of a year; three months phase of the moona time when the Moon presents a particular recurring appearance daythe period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis calendar month, monthone of the twelve divisions of the calendar year mid-Januarythe middle part of January mid-Februarythe middle part of February mid-Marchthe middle part of March mid-Aprilthe middle part of April mid-Maythe middle part of May mid-Junethe middle part of June mid-Julythe middle part of July mid-Augustthe middle part of August mid-Septemberthe middle part of September mid-Octoberthe middle part of October mid-Novemberthe middle part of November mid-Decemberthe middle part of December time limita time period within which something must be done or completed terma limited period of time trimestera period of three months; especially one of the three three-month periods into which human pregnancy is divided houra special and memorable period silly seasona time usually late summer characterized by exaggerated news stories about frivolous matters for want of real news Golden Age(classical mythology) the first and best age of the world, a time of ideal happiness, prosperity, and innocence; by extension, any flourishing and outstanding period silver age(classical mythology) the second age of the world, characterized by opulence and irreligion; by extension, a period secondary in achievement to a golden age bronze age(classical mythology) the third age of the world, marked by war and violence iron age(classical mythology) the last and worst age of the world Platonic year, great yeartime required for one complete cycle of the precession of the equinoxes, about 25,800 years regulation time(sports) the normal prescribed duration of a game extra time, overtimeplaying time beyond regulation, to break a tie season, time of yearone of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions canicular days, canicule, dog daysthe hot period between early July and early September; a period of inactivity midwinterthe middle of winter seasona recurrent time marked by major holidays seasona period of the year marked by special events or activities in some field age, long time, yearsa prolonged period of time long haul, long runa period of time sufficient for factors to work themselves out drought, droutha prolonged shortage epoch, eraa period marked by distinctive character or reckoned from a fixed point or event generationthe normal time between successive generations prehistoric culture, prehistorythe time during the development of human culture before the appearance of the written word reigna period during which something or somebody is dominant or powerful runthe continuous period of time during which something (a machine or a factory) operates or continues in operation early days, youthan early period of development dawnan opening time period eveninga later concluding time period timea period of time considered as a resource under your control and sufficient to accomplish something nap, sleepa period of time spent sleeping lease, term of a contractthe period of time during which a contract conveying property to a person is in effect half life, half-lifethe time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate) lunar time period, tidethere are usually two high and two low tides each day phase, stageany distinct time period in a sequence of events multistageoccurring in more than one stage watchthe period during which someone (especially a guard) is on duty peacetimea period of time during which there is no war wartimea period of time during which there is armed conflict duty tour, enlistment, hitch, term of enlistment, tour, tour of dutya period of time spent in military service honeymoonthe early (usually calm and harmonious) period of a relationship; business or political indictiona 15-year cycle used as a chronological unit in ancient Rome and adopted in some medieval kingdoms prohibition, prohibition erathe period from 1920 to 1933 when the sale of alcoholic beverages was prohibited in the United States by a constitutional amendment incubation periodthe period between infection and the appearance of symptoms of the disease rainy daya (future) time of financial need noviciate, novitiatethe period during which you are a novice (especially in a religious order) bloom, blossom, efflorescence, flower, flush, heyday, peak, primethe period of greatest prosperity or productivity running timethe length of time that a movie or tv show runs clotting timethe time it takes for a sample of blood to clot; used to diagnose some clotting disorders air alertthe time period during which military and civilian agencies are prepared for an enemy air attack question timea period during a parliamentary session when members of British Parliament may ask questions of the ministers real time(computer science) the time it takes for a process under computer control to occur real timethe actual time that it takes a process to occur study halla period of time during the school day that is set aside for study usancethe period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange) windowthe time period that is considered best for starting or finishing something harvest, harvest timethe season for gathering crops haying, haying timethe season for cutting and drying and storing grass as fodder diakinesisthe final stage of the prophase of meiosis diplotenethe fourth stage of the prophase of meiosis leptotenethe first stage of the prophase of meiosis pachytenethe third stage of the prophase of meiosis phase of cell divisiona stage in meiosis or mitosis zygotenethe second stage of the prophase of meiosis 24/7uptime is 24 hours a day 7 days a week hoursa period of time assigned for work face timework time spent at the location of or in the presence of other people compensatory timetime off that is granted to a worker as compensation for working overtime contemporary world, modern times, modern world, present timesthe circumstances and ideas of the present age Roman timesthe time period during which Rome dominated Europe daysome point or period in time deada time when coldness (or some other quality associated with death) is intense hard timesa time of difficulty incarnationtime passed in a particular bodily form OWLT, one-way light timethe elapsed time it takes for light (or radio signals) to travel between the Earth and a celestial object RTLT, round-trip light timethe elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point clockingthe time taken to traverse a measured course longueura period of dullness or boredom (especially in a work of literature or performing art) residence timethe period of time spent in a particular place spanthe complete duration of something stint, stretchan unbroken period of time during which you do something time scalean arrangement of events used as a measure of duration note value, time value, value(music) the relative duration of a musical note week, workweekhours or days of work in a calendar week daythe recurring hours when you are not sleeping (especially those when you are working) overtimework done in addition to regular working hours turnaround, turnaround timetime need to prepare a vessel or ship for a return trip free time, spare timetime available for hobbies and other activities that you enjoy day offa day when you are not required to work leisure, leisure timetime available for ease and relaxation leave, leave of absencethe period of time during which you are absent from work or duty days, yearsthe time during which someone's life continues afterlife, hereafterlife after death summerthe period of finest development, happiness, or beauty age, elda time of life (usually defined in years) at which some particular qualification or power arises neonatal periodthe first 28 days of life babyhood, early childhood, infancythe early stage of growth or development anal phase, anal stage(psychoanalysis) the second sexual and social stage of a child's development during which bowel control is learned genital phase, genital stage(psychoanalysis) the fifth sexual and social stage in a person's development occurring during adolescence; interest focuses on sexual activity latency period, latency phase, latency stage(psychoanalysis) the fourth period (from about age 5 or 6 until puberty) during which sexual interests are supposed to be sublimated into other activities oral phase, oral stage(psychoanalysis) the first sexual and social stage of an infant's development; the mouth is the focus of the libido and satisfaction comes from suckling and chewing and biting phallic phase, phallic stage(psychoanalysis) the third stage in a child's development when awareness of and manipulation of the genitals is supposed to be a primary source of pleasure childhoodthe time of person's life when they are a child schooldays, schooltimethe time of life when you are going to school youththe time of life between childhood and maturity adolescencethe time period between the beginning of puberty and adulthood prepubertya period of two years immediately prior to the onset of puberty when growth and changes leading to sexual maturity occur puberty, pubescencethe time of life when sex glands become functional teensthe time of life between the ages of 12 and 20 mid-twenties, twentiesthe time of life between 20 and 30 1900sthe decade from 1900 to 1909 1530sthe decade from 1530 to 1539 1920s, twentiesthe decade from 1920 to 1929 1820sthe decade from 1820 to 1829 mid-thirties, thirties, thirty-somethingthe time of life between 30 and 40 1930s, thirtiesthe decade from 1930 to 1939 1830sthe decade from 1830 to 1839 forties, mid-fortiesthe time of life between 40 and 50 1940s, fortiesthe decade from 1940 to 1949 1840sthe decade from 1840 to 1849 fifties, mid-fiftiesthe time of life between 50 and 60 1950s, fiftiesthe decade from 1950 to 1959 1850sthe decade from 1850 to 1859 1750sthe decade from 1750 to 1759 mid-sixties, sixtiesthe time of life between 60 and 70 1960s, sixtiesthe decade from 1960 to 1969 1860sthe decade from 1860 to 1869 1760sthe decade from 1760 to 1769 golden yearsthe time of life after retirement from active work mid-seventies, seventiesthe time of life between 70 and 80 1970s, seventiesthe decade from 1970 to 1979 1870sthe decade from 1870 to 1879 1770sthe decade from 1770 to 1779 eighties, mid-eightiesthe time of life between 80 and 90 1980s, eightiesthe decade from 1980 to 1989 1880s, eightiesthe decade from 1880 to 1889 1780sthe decade from 1780 to 1789 mid-nineties, ninetiesthe time of life between 90 and 100 1990s, ninetiesthe decade from 1990 to 1999 1890s, ninetiesthe decade from 1890 to 1899 1790sthe decade from 1790 to 1799 bloom, bloom of youth, salad daysthe best time of youth adulthood, maturitythe period of time in your life after your physical growth has stopped and you are fully developed bachelorhoodthe time of a man's life prior to marriage middle agethe time of life between youth and old age (e.g., between 40 and 60 years of age) widowhoodthe time of a woman's life when she is a widow age, eld, geezerhood, old age, yearsa late time of life deathbedthe last few hours before death daya day assigned to a particular purpose or observance datethe particular day, month, or year (usually according to the Gregorian calendar) that an event occurred church festival, religious festivala festival having religious significance day of the weekany one of the seven days in a week afternoonthe part of the day between noon and evening midafternoonthe middle part of the afternoon eve, even, evening, eventidethe latter part of the day (the period of decreasing daylight from late afternoon until nightfall) weeknightany night of the week except Saturday or Sunday week from Mondaya time period of a week or more rag, rag weeka week at British universities during which side-shows and processions of floats are organized to raise money for charities Christian year, church yearthe year in the ecclesiastical calendar; especially feast days and special seasons Revolutionary calendar montha month in the Revolutionary calendar Holy Week, Passion Weekthe week before Easter Holy Year(Roman Catholic Church) a period of remission from sin (usually granted every 25 years) New Yearthe calendar year just begun Michaelmastidethe season of Michaelmas Lammastidethe season of Lammas Eastertidethe Easter season Twelfthtidethe season of Epiphany Allhallowtidethe season of All Saints' Day Christmas, Christmastide, Christmastime, Noel, Yule, Yuletideperiod extending from Dec. 24 to Jan. 6 anomalistic yeartime of the earth's revolution from perihelion to perihelion again; 365 days and 6 hr and 13 min and 53.1 sec 365 days, common yeara year that is not a leap year 366 days, bissextile year, intercalary year, leap yearin the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400 off yeara year in which no major political elections are held off yeara year in which productivity is low or inferior calendar year, civil yearthe year (reckoned from January 1 to December 31) according to Gregorian calendar astronomical year, equinoctial year, solar year, tropical yearthe time for the earth to make one revolution around the sun, measured between two vernal equinoxes lunar yeara period of 12 lunar months financial year, fiscal yearany accounting period of 12 months academic year, school yearthe period of time each year when the school is open and people are studying annum(Latin) year quattrocentothe 15th century in Italian art and literature twentieth centurythe century from 1901 to 2000 new moon, new phase of the moonthe time at which the Moon appears as a narrow waxing crescent half-moonthe time at which the Moon is at first or last quarter when half its face is illuminated full, full moon, full phase of the moon, full-of-the-moonthe time when the Moon is fully illuminated lunar daythe period of time taken for the moon to make one full rotation on its axis (about 27.3 sidereal days) sidereal yearthe time for the earth to make one complete revolution around the sun, relative to the fixed stars Gregorian calendar montha month in the Gregorian calendar Jewish calendar montha month in the Jewish calendar Islamic calendar monthany lunar month in the Muslim calendar Hindu calendar monthany lunisolar month in the Hindu calendar wedding nightthe night after the wedding when bride and groom sleep together limitation(law) a time period after which suits cannot be brought prison term, sentence, timethe period of time a prisoner is imprisoned academic session, academic term, school term, sessionthe time during which a school holds classes first trimestertime period extending from the first day of the last menstrual period through 12 weeks of gestation second trimestertime period extending from the 13th to the 27th week of gestation third trimestertime period extending from the 28th week of gestation until delivery extra inningsovertime play until one team is ahead at the end of an inning; e.g. baseball overtime perioda period of overtime play to resolve a tie; e.g. basketball tiebreakerovertime play in order to break a tie; e.g. tennis and soccer sudden death(sports) overtime in which play is stopped as soon as one contestant scores; e.g. football and golf autumn, fallthe season when the leaves fall from the trees spring, springtimethe season of growth summer, summertimethe warmest season of the year; in the northern hemisphere it extends from the summer solstice to the autumnal equinox winter, wintertimethe coldest season of the year; in the northern hemisphere it extends from the winter solstice to the vernal equinox growing seasonthe season during which a crop grows best seedtimethe time during which seeds should be planted sheepshearingthe time or season when sheep are sheared holiday seasona time when many people take holidays high season, peak seasonthe season when travel is most active and rates are highest off-seasonthe season when travel is least active and rates are lowest rainy seasonone of the two seasons in tropical climates dry seasonone of the two seasons in tropical climates preseasona period prior to the beginning of the regular season which is devoted to training and preparation baseball seasonthe season when baseball is played basketball seasonthe season when basketball is played exhibition seasonthe time before the regular games begin when football or baseball teams play practice games fishing seasonthe season during which it is legal to catch fish football seasonthe season when football is played hockey seasonthe season when hockey is played hunting seasonthe season during which it is legal to kill a particular species social seasonthe season for major social events theatrical seasonthe season when new plays are produced Adventthe season including the four Sundays preceding Christmas Shrovetideimmediately preceding Lent Lent, Lententidea period of 40 weekdays from Ash Wednesday to Holy Saturday Whitsun, Whitsuntide, WhitweekChristian holiday; the week beginning on Whitsunday (especially the first 3 days) month of Sundaysa time perceived as long aeon, eonan immeasurably long period of time blue moona long time year dotas long ago as anyone can remember weea short time patch, piece, spell, whilea period of indeterminate length (usually short) marked by some action or condition bit, minute, mo, moment, secondan indefinitely short time ephemerasomething transitory; lasting a day dayan era of existence or influence year of graceany year of the Christian era Y2Kthe year 2000 in the Gregorian calendar chapterany distinct period in history or in a person's life age, historic periodan era of history having some distinctive feature modern erathe present or recent times reign of terrorany period of brutal suppression thought to resemble the Reign of Terror in France press run, print runthe period that presses run to produce an issue of a newspaper run-time(computer science) the length of time it takes to execute a software program space agethe age beginning with the first space travel; from 1957 to the present beauty sleepsleep before midnight kipsleep incubation(pathology) the phase in the development of an infection between the time a pathogen enters the body and the time the first symptoms appear fertile period, fertile phasethe time in the menstrual cycle when fertilization is most likely to be possible (7 days before to 7 days after ovulation) menstrual phasethe phase of the menstrual cycle during which the lining of the uterus is shed (the first day of menstrual flow is considered day 1 of the menstrual cycle) musthan annual phase of heightened sexual excitement in the males of certain large mammals (especially elephants); is associated with discharge from a gland between the eye and ear luteal phase, secretory phasethe second half of the menstrual cycle after ovulation; the corpus luteum secretes progesterone which prepares the endometrium for the implantation of an embryo; if fertilization does not occur then menstrual flow begins generationa stage of technological development or innovation apogee, culminationa final climactic stage seedtimeany time of new development incumbency, tenure, term of officethe term during which some position is held golden agea time period when some activity or skill was at its peak rulethe duration of a monarch's or government's power safe periodthat time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation) shibah, shiva, shivah(Judaism) a period of seven days of mourning after the death of close relative probationa trial period during which an offender has time to redeem himself or herself probationa trial period during which your character and abilities are tested to see whether you are suitable for work or for membership fundamental measure, fundamental quantity one of the four quantities that are the basis of systems of measurement 2n the interval taken to complete one cycle of a regularly repeating phenomenon Hypo|Hyper orbit period the time it takes to complete one full orbit around a celestial body interval, time interval a definite length of time marked off by two instants 3n a unit of geological time during which a system of rocks formed Syn|Exp|Hypo|Hyper geological period Quaternary period last 2 million years Tertiary periodfrom 63 million to 2 million years ago Cretaceous periodfrom 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants Jurassic periodfrom 190 million to 135 million years ago; dinosaurs; conifers Triassic periodfrom 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity Permian periodfrom 280 million to 230 million years ago; reptiles Carboniferous periodfrom 345 million to 280 million years ago Upper Carboniferous periodfrom 310 million to 280 million years ago; warm climate; swampy land Lower Carboniferous periodfrom 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects Devonian periodfrom 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites Silurian periodfrom 425 million to 405 million years ago; first air-breathing animals Ordovician periodfrom 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds Cambrian periodfrom 544 million to about 500 million years ago; marine invertebrates glacial epoch, glacial period, ice age any period of time during which glaciers covered a large part of the earth's surface geologic time, geological time the time of the physical formation and development of the earth (especially prior to human history) 4n the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause Syn|Hypo|Hyper catamenia, flow, menses, menstruation, menstruum hypermenorrhea, menorrhagia abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged oligomenorrheaabnormally light or infrequent menstruation discharge, emission, expelling any of several bodily processes by which substances go out of the body 5n (ice hockey) one of three divisions into which play is divided in hockey games 2Hyper division, part, section one of the portions into which something is regarded as divided and which together constitute a whole 1n a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations in England they call a period a stop Syn|Hypo|Hyper full point, full stop, point, stop suspension point (usually plural) one of a series of points indicating that something has been omitted or that the sentence is incomplete punctuation, punctuation mark the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases 2n the end or completion of something death put a period to his endeavors a change soon put a period to my tranquility Hyper end, ending the point in time at which something ends |
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