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单词 speed
释义 speed
I. \ˈspēd\ noun
(-s)
Etymology: Middle English spede, from Old English spēd; akin to Old High German spuot prosperity, success, speed, spāti late, Gothic spediza latecomer, Latin spes hope, spatium space, Lithuanian spėtas leisure, Sanskrit sphāra extensive, sphāyati it increases, grows fat; basic meaning: to increase, expand
1.
 a. archaic : good fortune : favorable issue : success
 b. archaic : something that falls to one's lot : fortune
  < send me good speed this day, and show kindness unto my master — Gen 24:12 (Authorized Version) >
 c. obsolete : one that furthers success or provides favorable conditions
  < now Hercules be thy speed, young man — Shakespeare >
2.
 a. : the act, action, or state of moving swiftly : celerity, dispatch, swiftness
  < this is the day of speed, of the atom, of wanting to get to places before you start — W.J.MacQueen-Pope >
  < the animal escaped pursuit by speed rather than cunning >
 b. : rate of motion
  < a heavy person who moved at a glacial speed >
  < drove at a reckless speed >
 specifically : rate of motion irrespective of direction : the magnitude of velocity expressed as a particular relationship
  < the car maintained a speed of 150 miles per hour >
  < a record made to be played at a speed of 33 1/3 revolutions per minute >
 c. : capacity or power of motion
  < put all his speed into the attempt to reach the ball before it hit the ground >
 d. : momentum
  < set in motion an economic revival that gathered speed with the hastening sense of crisis — Oscar Handlin >
3.
 a. : swiftness of performance or execution : quickness
  < as the minuteness of the parts formed a great hindrance to my speed, I resolved … to make the being of a gigantic stature — Mary W. Shelley >
  < a pastel sketch of flowers, full of life and speed — Adrian Bell >
 b. : rate of performance or action
  < trying to increase his reading speed >
4.
 a. : the sensitivity of a photographic film, plate, or paper that is often expressed numerically according to one of several systems
 b. : the light gathering power of a lens or optical system expressed as relative aperture
 c. : the time during which a camera shutter is open
5. : a transmission gear in automotive vehicles
 < shift to low speed >
6.
 a. : character or level of performance or activity
  < they need a new night watchman at the dam; that's about your speed — Elmer Davis >
 b. : a person or thing suited to one's tastes : cup of tea
  < bottled beer and a cigar are about their speed — A.J.Liebling >
7. of a baseball pitcher : ability to throw a fast ball
 < has a good curve, but no speed >
Synonyms: see haste

- at speed
II. verb
(sped \ˈsped\ ; or speeded ; sped or speeded ; speeding ; speeds)
Etymology: Middle English speden, from Old English spēdan; akin to Middle Dutch spoeden to speed, Old Saxon spōdian to prosper, Old High German spuoten to prosper, succeed; derivative from the root of English speed (I)
intransitive verb
1.
 a. : to experience good fortune : fare well : prosper
  < regarding the quality of the sheep the shepherds led, asking if the rams speeded — George Moore >
 b. : to get along : fare, succeed
  < a forlorn hope at the best … I should like to know how you speed — Charles Dickens >
2.
 a. : to go or pass quickly
  < the work sped on at a commendable rate until completed — I.M.Price >
  < his college years sped by — Alexander MacDonald >
 b. : to move with speed : make haste
  < ordered an automobile and sped directly to the village — H.F.Wilkins >
  < fighter planes which speed to intercept and identify — Lamp >
 c. : to go or drive at an excessive speed
  < was speeding on the icy highway and the car skidded >
 specifically : to drive at an illegal speed : exceed the speed limit
  < speeded for a while but slowed down when he saw a police car >
3. : to move, work, or take place at a faster rate — usually used with up
 < the heart speeds up and the blood pressure rises — H.G.Armstrong >
 < her embezzlements were speeding up — R.T.Moriarty >
transitive verb
1.
 a. archaic : to cause or help to prosper : aid
  < the Saxon bade God speed him — Sir Walter Scott >
 b. : to promote the development or success of : advance, further
  < two other things happened that sped the process — J.S.Martin >
  < increasing the supply of banknotes and speeding the inflationary trend — R.A.Billington >
 c. archaic : to bring to a state of satisfaction or sufficiency : satisfy
2.
 a. : to cause to move quickly : hasten
  < sped our craft forward — Nora Waln >
  < he sped his pen to complete his treatises on government — U.B.Phillips >
  < a camaraderie which sped the evening hours away all too quickly — Gwen Allmon >
 b.
  (1) : to expedite the departure of : aid in going or traveling
   < some villager's departing soul was being ritually sped on its difficult road from earth to paradise — Arthur Grimble >
   < cops obligingly scattering traffic to speed us on our way — Bennett Cerf >
  (2) : to say good-bye to
   < speed the parting guest >
 c. : to increase the rate of motion or operation of : accelerate — usually used with up
  < speeded up the engine >
  < speeded up production >
3. : to send out (as to a target) : direct, discharge
 < sped arrows from their heavy war bows — F.V.W.Mason >
 < these short essays … sped with so intense a seriousness — Edmund Wilson >
4.
 a. archaic : to bring to completion : finish
 b. archaic : destroy, kill
5. : to set, adjust, or design to or for a definite speed
Synonyms:
 accelerate, quicken, hasten, hurry, precipitate: speed, although usually throwing stress upon the rapidity of motion or progress
  < bullets sped only a few feet over the Americans' heads — Dave Richardson >
  < poised to speed down the runway — Richard Thruelsen >
  is also generally used to emphasize the becoming rapid or the achievement of such rapidity as by acceleration or increasing efficiency
  < his heart speeded a little as he neared the cluster of tents — L.C.Douglas >
  < linked with fourteen miles of highway connections, it speeds traffic by shunting through-vehicles away from congested areas and carrying them swiftly across the boroughs — American Guide Series: New York City >
  accelerate emphasizes an increase in rate of motion or progress, not necessarily implying rapidity
  < accelerate your pace >
  < efforts to accelerate our technological progress — H.H.Curtice >
  < the development of the steamboat accelerated the stream of farm products flowing toward the South — American Guide Series: Ind. >
  quicken often adds to the idea of an increase in rapidity the notion of an increase in animation in the action, often also throwing stress upon the shortening of time consumed
  < how our steps quickened when we heard the exhilarating notes of the trumpets and drums — G.E.Fox >
  < the pace of discovery in geology has been quickened by applying the principles and techniques of modern physics — Scientific American Reader >
  hasten may add the notion of urgency or of an earlier or sometimes premature outcome
  < assembled a force of volunteers and … hastened to the relief of the village — American Guide Series: Minnesota >
  < as rapidly as physics and electronics are hastening the future — Time >
  hurry sometimes suggests the notion of a disturbing acceleration of pace and a consequent disorder in the activity or progress
  < hurry home after dark >
  < events which were hurrying the war to the close — H.E.Scudder >
  < the need for responsive action hurries us along and prevents us from ever realising fully what the emotion is that we feel — Roger Fry >
  precipitate implies usually an unexpectedly sudden or abrupt motion or progress
  < at that instant two animals precipitated against his calves, thereby nearly unbalancing him — John Buchan >
  < one of the bitter disputes was precipitated by the question of women's suffrage — American Guide Series: Tennessee >
  < the false charges that the radicals had maliciously precipitated the strike — Oscar Handlin >
III. adjective
Etymology: speed (I)
: of or relating to speed : regulating, indicating, or attaining speed
IV. noun
: methamphetamine ; also : a related stimulant drug and especially an amphetamine

- up to speed
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更新时间:2025/6/17 4:48:13