Definition of thirty in English:

thirty

cardinal number ˈθəːtiˈθərdi

1The number equivalent to the product of three and ten; ten less than forty; 30.
thirty or forty years ago
thirty were hurt
thirty of her school friends
Example sentencesExamples
- About thirty or forty were injured, including more than a dozen elderly persons.
- It has rained and blown a gale continuously now for over thirty hours!
- But there is no doubt in my mind that people were happier thirty or forty years ago.
- He is apt to spend thirty or forty pages on an incident to which an equally good writer might devote three.
- She normally makes thirty forty different scans from a set of flowers, before she finds an image that interests her.
- There were thirty or forty people there, which was an excellent turnout.
- He had no devoted readership and little chance of remaining in print for long, let alone being republished in thirty or forty years' time.
- We stood, awkwardly for a full thirty seconds, before he seemed to jolt back to life.
- On checking my bank statement last Friday, I discovered that I had a mere thirty pence to last me until payday at the end of July!
- The human landscape of Europe has changed radically over the last thirty or so years.
- However, there is a thirty percent decrease in fluorescence intensity of the polymer.
- After a good thirty yards she came to a heavy wooden door that was locked.
- There were four tents in all, three for the thirty male soldiers and one for the ten females.
- All thirty of them huddled by the fire, hoping to be shielded from the wicked wind.
- Most of the political philosophy written in the last thirty years has been on this question.
- These policies established the main outlines of British policy over the following thirty years.
- The only recourse is for Ed to drive thirty miles to the nearest hospital for help.
- More people were killed in political violence in those four years, than in the previous thirty.
- Typical notice periods are thirty, sixty and ninety days, although some are as short as seven days.
- He had put himself on a fixed budget and couldn't afford to spend more then thirty to forty dollars a day.
1. 1.1thirties The numbers from thirty to thirty-nine, especially the years of a century or of a person's life.
  a woman in her thirties
  she was a famous actress in the thirties
  Example sentencesExamples
  Yeah, this record is kind of about what happens when you let your adolescence continue into your thirties.
  He was in his thirties and his death at such a young age cast a pall of sadness over the area.
  We should be nurturing leadership at a much earlier age and developing skills within people in their thirties.
  When she returned New Zealand was in the grip of the Depression of the thirties with high unemployment.
  She's a successful actor who, in her late thirties, became a successful writer.
  Five men, all aged in their thirties or forties, were arrested at the scene.
  Like many of the others, it is set in a suburb populated by beautiful women in their late thirties and early forties.
  He is in his late thirties or early forties and very well put together.
  A man in his late thirties, who was in the house at the time of the incident, managed to escape without injury.
  In the thirties she settled down to mystery production, and averaged nearly two novels a year.
  And wages vary by age - peak decades for earning are our thirties and forties.
  Younger women, those in their late thirties and early forties, are simply not signing up.
  The man, who was single and in his thirties, was on his way from Cork delivering a load of timber to a site in Waterford.
  She did not live in Ireland in the thirties; she lived in Sussex and London and merely visited Eire.
  These are people who grew up in Ireland in the twenties and thirties and reached maturity in the era of World War Two.
  Alan introduced me to the boyish owner, a nerdy man in his early thirties.
  Police are trying to identify the man, aged in his twenties or thirties.
  We manage to hang on to most of it into our thirties and forties.
  The woman was described as being aged in her thirties, with mousy brown hair cut in a bowl style and a spotty complexion.
  They are all thought to be aged in their twenties or thirties.
2. 1.2 Thirty years old.
  I've got a long way to go before I'm thirty
  Example sentencesExamples
  I put it behind the desk as requested and followed the doctor, a woman roughly around the age of thirty.
  At the age of thirty, everything my father had told me turned out to be true.
  His genius lay in the gaining and exercise of power and by the age of thirty, he acted as effective ruler of England when the King was overseas.
  By the age of thirty he headed a household that included a wife and daughter.
  If I could achieve my goal at the age of thirty, imagine what a 10-year-old can achieve.
  At the age of thirty I was still unsure of myself and I did not even know how to spend a Sunday evening.
  Men did not normally marry until between the ages of twenty-five and thirty.
  Turning thirty, I abandoned the faux maturity and started acting as I pleased.
  Parents over the age of thirty are becoming a larger proportion of first-time parents.
  Before embarking on a political career in September 1919 at the age of thirty, Adolf Hitler had been a nonentity.
  However a university regulation prevented anyone below the age of thirty holding a chair.
  She could have been any age between thirty and fifty, and was not someone to mess with.
  The average age was about thirty and a lot were travelers backpacking around the world.
  Many of the men above the age of thirty sat about a table playing a game of whist and the youngest of the children ran about the green grass of the Redford grounds.
  He was sitting alone on the other end of the couch near the mystery woman who looked around the age of thirty or so.
  It is a young population, with the majority under the age of thirty.
  While she had five children by the age of thirty, her daughters are yet to become pregnant.
  She could have been anywhere from the age of fourteen to the age of thirty.
  By the age of thirty, however, her siblings were unwilling to walk with her because she was so slow.
  Male citizens between ages twenty-one and thirty are required to serve in the military for two years.
3. 1.3 Thirty miles an hour.
  doing about thirty
4. 1.4 A size of garment or other merchandise denoted by thirty.
5. 1.5Tennis The second point won by a player in a game.
  with the score at thirty all Kumar hit a low volley into the net

Derivatives

thirtieth

ordinal number ˈθəːtɪəθˈθərdiəθ

1Constituting number thirty in a sequence; 30th.
her thirtieth birthday
Example sentencesExamples
- his flat is on the thirtieth floor
- Jordan is completing his thirtieth year of service with the Army's 35th Signal Brigade and reaching his mandatory retirement date.
- Ranking above Bulgaria were Slovenia, in fourteenth place, Poland in thirtieth place, and Croatia in thirty-third place.
- The commemorative statue was unveiled on the thirtieth anniversary, in January this year.
- a thirtieth of a second
2Each of thirty equal parts into which something is or may be divided.

thirtyfold

adverb & adjectiveˈθəːtɪfəʊldˈθərdiˌfoʊld

Since then, transfer fees have multiplied thirtyfold.
Example sentencesExamples
- The gap between the richest and poorest one-fifths of the world is now about onehundredfold, whereas 30 years ago it was about thirtyfold or fortyfold.
- When the ice melted, which it did quickly, the sudden reduction in weight caused a thirtyfold increase in volcanic activity, creating the numerous volcanic mountains that now dominate the landscape.
- A thousandfold increase in the computer time invested in the task has brought a thirtyfold improvement in precision.
- The result is a thirtyfold increase in the detection sensitivity when the system is operating near the lasing threshold.

Origin

Old English thrītig (see three, -ty²). The spelling with initial thi- is recorded in literature in the 15th century, and has been the prevalent form since the 16th century.

Rhymes

Alberti, Bertie, dirty, flirty, shirty

Definition of thirty in US English:

thirty

cardinal numberˈTHərdēˈθərdi

1The number equivalent to the product of three and ten; ten less than forty; 30.
thirty or forty years ago
thirty were hurt
thirty of her school friends
Example sentencesExamples
- On checking my bank statement last Friday, I discovered that I had a mere thirty pence to last me until payday at the end of July!
- He had put himself on a fixed budget and couldn't afford to spend more then thirty to forty dollars a day.
- Typical notice periods are thirty, sixty and ninety days, although some are as short as seven days.
- We stood, awkwardly for a full thirty seconds, before he seemed to jolt back to life.
- These policies established the main outlines of British policy over the following thirty years.
- About thirty or forty were injured, including more than a dozen elderly persons.
- He had no devoted readership and little chance of remaining in print for long, let alone being republished in thirty or forty years' time.
- All thirty of them huddled by the fire, hoping to be shielded from the wicked wind.
- There were four tents in all, three for the thirty male soldiers and one for the ten females.
- However, there is a thirty percent decrease in fluorescence intensity of the polymer.
- The only recourse is for Ed to drive thirty miles to the nearest hospital for help.
- It has rained and blown a gale continuously now for over thirty hours!
- Most of the political philosophy written in the last thirty years has been on this question.
- But there is no doubt in my mind that people were happier thirty or forty years ago.
- She normally makes thirty forty different scans from a set of flowers, before she finds an image that interests her.
- After a good thirty yards she came to a heavy wooden door that was locked.
- The human landscape of Europe has changed radically over the last thirty or so years.
- More people were killed in political violence in those four years, than in the previous thirty.
- He is apt to spend thirty or forty pages on an incident to which an equally good writer might devote three.
- There were thirty or forty people there, which was an excellent turnout.
1. 1.1thirties The numbers from thirty to thirty-nine, especially the years of a century or of a person's life.
  a woman in her thirties
  she was a famous actress in the thirties
  Example sentencesExamples
  Police are trying to identify the man, aged in his twenties or thirties.
  He is in his late thirties or early forties and very well put together.
  And wages vary by age - peak decades for earning are our thirties and forties.
  Five men, all aged in their thirties or forties, were arrested at the scene.
  The woman was described as being aged in her thirties, with mousy brown hair cut in a bowl style and a spotty complexion.
  She's a successful actor who, in her late thirties, became a successful writer.
  We manage to hang on to most of it into our thirties and forties.
  Yeah, this record is kind of about what happens when you let your adolescence continue into your thirties.
  These are people who grew up in Ireland in the twenties and thirties and reached maturity in the era of World War Two.
  She did not live in Ireland in the thirties; she lived in Sussex and London and merely visited Eire.
  Like many of the others, it is set in a suburb populated by beautiful women in their late thirties and early forties.
  Alan introduced me to the boyish owner, a nerdy man in his early thirties.
  In the thirties she settled down to mystery production, and averaged nearly two novels a year.
  When she returned New Zealand was in the grip of the Depression of the thirties with high unemployment.
  We should be nurturing leadership at a much earlier age and developing skills within people in their thirties.
  Younger women, those in their late thirties and early forties, are simply not signing up.
  A man in his late thirties, who was in the house at the time of the incident, managed to escape without injury.
  They are all thought to be aged in their twenties or thirties.
  He was in his thirties and his death at such a young age cast a pall of sadness over the area.
  The man, who was single and in his thirties, was on his way from Cork delivering a load of timber to a site in Waterford.
2. 1.2 Thirty years old.
  I've got a long way to go before I'm thirty
  Example sentencesExamples
  The average age was about thirty and a lot were travelers backpacking around the world.
  Men did not normally marry until between the ages of twenty-five and thirty.
  He was sitting alone on the other end of the couch near the mystery woman who looked around the age of thirty or so.
  Turning thirty, I abandoned the faux maturity and started acting as I pleased.
  If I could achieve my goal at the age of thirty, imagine what a 10-year-old can achieve.
  At the age of thirty I was still unsure of myself and I did not even know how to spend a Sunday evening.
  While she had five children by the age of thirty, her daughters are yet to become pregnant.
  At the age of thirty, everything my father had told me turned out to be true.
  However a university regulation prevented anyone below the age of thirty holding a chair.
  By the age of thirty he headed a household that included a wife and daughter.
  His genius lay in the gaining and exercise of power and by the age of thirty, he acted as effective ruler of England when the King was overseas.
  It is a young population, with the majority under the age of thirty.
  She could have been any age between thirty and fifty, and was not someone to mess with.
  She could have been anywhere from the age of fourteen to the age of thirty.
  Parents over the age of thirty are becoming a larger proportion of first-time parents.
  Before embarking on a political career in September 1919 at the age of thirty, Adolf Hitler had been a nonentity.
  Many of the men above the age of thirty sat about a table playing a game of whist and the youngest of the children ran about the green grass of the Redford grounds.
  By the age of thirty, however, her siblings were unwilling to walk with her because she was so slow.
  Male citizens between ages twenty-one and thirty are required to serve in the military for two years.
  I put it behind the desk as requested and followed the doctor, a woman roughly around the age of thirty.
3. 1.3 Thirty miles an hour.
  doing about thirty
4. 1.4Tennis The second point won by a player in a game.
  with the score at thirty all Kumar hit a low volley into the net

Origin

Old English thrītig (see three, -ty). The spelling with initial thi- is recorded in literature in the 15th century, and has been the prevalent form since the 16th century.

单词	thirty
释义	Definition of thirty in English: thirty cardinal number ˈθəːtiˈθərdi 1The number equivalent to the product of three and ten; ten less than forty; 30. thirty or forty years ago thirty were hurt thirty of her school friends Example sentencesExamples About thirty or forty were injured, including more than a dozen elderly persons. It has rained and blown a gale continuously now for over thirty hours! But there is no doubt in my mind that people were happier thirty or forty years ago. He is apt to spend thirty or forty pages on an incident to which an equally good writer might devote three. She normally makes thirty forty different scans from a set of flowers, before she finds an image that interests her. There were thirty or forty people there, which was an excellent turnout. He had no devoted readership and little chance of remaining in print for long, let alone being republished in thirty or forty years' time. We stood, awkwardly for a full thirty seconds, before he seemed to jolt back to life. On checking my bank statement last Friday, I discovered that I had a mere thirty pence to last me until payday at the end of July! The human landscape of Europe has changed radically over the last thirty or so years. However, there is a thirty percent decrease in fluorescence intensity of the polymer. After a good thirty yards she came to a heavy wooden door that was locked. There were four tents in all, three for the thirty male soldiers and one for the ten females. All thirty of them huddled by the fire, hoping to be shielded from the wicked wind. Most of the political philosophy written in the last thirty years has been on this question. These policies established the main outlines of British policy over the following thirty years. The only recourse is for Ed to drive thirty miles to the nearest hospital for help. More people were killed in political violence in those four years, than in the previous thirty. Typical notice periods are thirty, sixty and ninety days, although some are as short as seven days. He had put himself on a fixed budget and couldn't afford to spend more then thirty to forty dollars a day. 1.1thirties The numbers from thirty to thirty-nine, especially the years of a century or of a person's life. a woman in her thirties she was a famous actress in the thirties Example sentencesExamples Yeah, this record is kind of about what happens when you let your adolescence continue into your thirties. He was in his thirties and his death at such a young age cast a pall of sadness over the area. We should be nurturing leadership at a much earlier age and developing skills within people in their thirties. When she returned New Zealand was in the grip of the Depression of the thirties with high unemployment. She's a successful actor who, in her late thirties, became a successful writer. Five men, all aged in their thirties or forties, were arrested at the scene. Like many of the others, it is set in a suburb populated by beautiful women in their late thirties and early forties. He is in his late thirties or early forties and very well put together. A man in his late thirties, who was in the house at the time of the incident, managed to escape without injury. In the thirties she settled down to mystery production, and averaged nearly two novels a year. And wages vary by age - peak decades for earning are our thirties and forties. Younger women, those in their late thirties and early forties, are simply not signing up. The man, who was single and in his thirties, was on his way from Cork delivering a load of timber to a site in Waterford. She did not live in Ireland in the thirties; she lived in Sussex and London and merely visited Eire. These are people who grew up in Ireland in the twenties and thirties and reached maturity in the era of World War Two. Alan introduced me to the boyish owner, a nerdy man in his early thirties. Police are trying to identify the man, aged in his twenties or thirties. We manage to hang on to most of it into our thirties and forties. The woman was described as being aged in her thirties, with mousy brown hair cut in a bowl style and a spotty complexion. They are all thought to be aged in their twenties or thirties. 1.2 Thirty years old. I've got a long way to go before I'm thirty Example sentencesExamples I put it behind the desk as requested and followed the doctor, a woman roughly around the age of thirty. At the age of thirty, everything my father had told me turned out to be true. His genius lay in the gaining and exercise of power and by the age of thirty, he acted as effective ruler of England when the King was overseas. By the age of thirty he headed a household that included a wife and daughter. If I could achieve my goal at the age of thirty, imagine what a 10-year-old can achieve. At the age of thirty I was still unsure of myself and I did not even know how to spend a Sunday evening. Men did not normally marry until between the ages of twenty-five and thirty. Turning thirty, I abandoned the faux maturity and started acting as I pleased. Parents over the age of thirty are becoming a larger proportion of first-time parents. Before embarking on a political career in September 1919 at the age of thirty, Adolf Hitler had been a nonentity. However a university regulation prevented anyone below the age of thirty holding a chair. She could have been any age between thirty and fifty, and was not someone to mess with. The average age was about thirty and a lot were travelers backpacking around the world. Many of the men above the age of thirty sat about a table playing a game of whist and the youngest of the children ran about the green grass of the Redford grounds. He was sitting alone on the other end of the couch near the mystery woman who looked around the age of thirty or so. It is a young population, with the majority under the age of thirty. While she had five children by the age of thirty, her daughters are yet to become pregnant. She could have been anywhere from the age of fourteen to the age of thirty. By the age of thirty, however, her siblings were unwilling to walk with her because she was so slow. Male citizens between ages twenty-one and thirty are required to serve in the military for two years. 1.3 Thirty miles an hour. doing about thirty 1.4 A size of garment or other merchandise denoted by thirty. 1.5Tennis The second point won by a player in a game. with the score at thirty all Kumar hit a low volley into the net Derivatives thirtieth ordinal number ˈθəːtɪəθˈθərdiəθ 1Constituting number thirty in a sequence; 30th. her thirtieth birthday Example sentencesExamples his flat is on the thirtieth floor Jordan is completing his thirtieth year of service with the Army's 35th Signal Brigade and reaching his mandatory retirement date. Ranking above Bulgaria were Slovenia, in fourteenth place, Poland in thirtieth place, and Croatia in thirty-third place. The commemorative statue was unveiled on the thirtieth anniversary, in January this year. a thirtieth of a second 2Each of thirty equal parts into which something is or may be divided. thirtyfold adverb & adjectiveˈθəːtɪfəʊldˈθərdiˌfoʊld Since then, transfer fees have multiplied thirtyfold. Example sentencesExamples The gap between the richest and poorest one-fifths of the world is now about onehundredfold, whereas 30 years ago it was about thirtyfold or fortyfold. When the ice melted, which it did quickly, the sudden reduction in weight caused a thirtyfold increase in volcanic activity, creating the numerous volcanic mountains that now dominate the landscape. A thousandfold increase in the computer time invested in the task has brought a thirtyfold improvement in precision. The result is a thirtyfold increase in the detection sensitivity when the system is operating near the lasing threshold. Origin Old English thrītig (see three, -ty²). The spelling with initial thi- is recorded in literature in the 15th century, and has been the prevalent form since the 16th century. Rhymes Alberti, Bertie, dirty, flirty, shirty Definition of thirty in US English: thirty cardinal numberˈTHərdēˈθərdi 1The number equivalent to the product of three and ten; ten less than forty; 30. thirty or forty years ago thirty were hurt thirty of her school friends Example sentencesExamples On checking my bank statement last Friday, I discovered that I had a mere thirty pence to last me until payday at the end of July! He had put himself on a fixed budget and couldn't afford to spend more then thirty to forty dollars a day. Typical notice periods are thirty, sixty and ninety days, although some are as short as seven days. We stood, awkwardly for a full thirty seconds, before he seemed to jolt back to life. These policies established the main outlines of British policy over the following thirty years. About thirty or forty were injured, including more than a dozen elderly persons. He had no devoted readership and little chance of remaining in print for long, let alone being republished in thirty or forty years' time. All thirty of them huddled by the fire, hoping to be shielded from the wicked wind. There were four tents in all, three for the thirty male soldiers and one for the ten females. However, there is a thirty percent decrease in fluorescence intensity of the polymer. The only recourse is for Ed to drive thirty miles to the nearest hospital for help. It has rained and blown a gale continuously now for over thirty hours! Most of the political philosophy written in the last thirty years has been on this question. But there is no doubt in my mind that people were happier thirty or forty years ago. She normally makes thirty forty different scans from a set of flowers, before she finds an image that interests her. After a good thirty yards she came to a heavy wooden door that was locked. The human landscape of Europe has changed radically over the last thirty or so years. More people were killed in political violence in those four years, than in the previous thirty. He is apt to spend thirty or forty pages on an incident to which an equally good writer might devote three. There were thirty or forty people there, which was an excellent turnout. 1.1thirties The numbers from thirty to thirty-nine, especially the years of a century or of a person's life. a woman in her thirties she was a famous actress in the thirties Example sentencesExamples Police are trying to identify the man, aged in his twenties or thirties. He is in his late thirties or early forties and very well put together. And wages vary by age - peak decades for earning are our thirties and forties. Five men, all aged in their thirties or forties, were arrested at the scene. The woman was described as being aged in her thirties, with mousy brown hair cut in a bowl style and a spotty complexion. She's a successful actor who, in her late thirties, became a successful writer. We manage to hang on to most of it into our thirties and forties. Yeah, this record is kind of about what happens when you let your adolescence continue into your thirties. These are people who grew up in Ireland in the twenties and thirties and reached maturity in the era of World War Two. She did not live in Ireland in the thirties; she lived in Sussex and London and merely visited Eire. Like many of the others, it is set in a suburb populated by beautiful women in their late thirties and early forties. Alan introduced me to the boyish owner, a nerdy man in his early thirties. In the thirties she settled down to mystery production, and averaged nearly two novels a year. When she returned New Zealand was in the grip of the Depression of the thirties with high unemployment. We should be nurturing leadership at a much earlier age and developing skills within people in their thirties. Younger women, those in their late thirties and early forties, are simply not signing up. A man in his late thirties, who was in the house at the time of the incident, managed to escape without injury. They are all thought to be aged in their twenties or thirties. He was in his thirties and his death at such a young age cast a pall of sadness over the area. The man, who was single and in his thirties, was on his way from Cork delivering a load of timber to a site in Waterford. 1.2 Thirty years old. I've got a long way to go before I'm thirty Example sentencesExamples The average age was about thirty and a lot were travelers backpacking around the world. Men did not normally marry until between the ages of twenty-five and thirty. He was sitting alone on the other end of the couch near the mystery woman who looked around the age of thirty or so. Turning thirty, I abandoned the faux maturity and started acting as I pleased. If I could achieve my goal at the age of thirty, imagine what a 10-year-old can achieve. At the age of thirty I was still unsure of myself and I did not even know how to spend a Sunday evening. While she had five children by the age of thirty, her daughters are yet to become pregnant. At the age of thirty, everything my father had told me turned out to be true. However a university regulation prevented anyone below the age of thirty holding a chair. By the age of thirty he headed a household that included a wife and daughter. His genius lay in the gaining and exercise of power and by the age of thirty, he acted as effective ruler of England when the King was overseas. It is a young population, with the majority under the age of thirty. She could have been any age between thirty and fifty, and was not someone to mess with. She could have been anywhere from the age of fourteen to the age of thirty. Parents over the age of thirty are becoming a larger proportion of first-time parents. Before embarking on a political career in September 1919 at the age of thirty, Adolf Hitler had been a nonentity. Many of the men above the age of thirty sat about a table playing a game of whist and the youngest of the children ran about the green grass of the Redford grounds. By the age of thirty, however, her siblings were unwilling to walk with her because she was so slow. Male citizens between ages twenty-one and thirty are required to serve in the military for two years. I put it behind the desk as requested and followed the doctor, a woman roughly around the age of thirty. 1.3 Thirty miles an hour. doing about thirty 1.4Tennis The second point won by a player in a game. with the score at thirty all Kumar hit a low volley into the net Origin Old English thrītig (see three, -ty). The spelling with initial thi- is recorded in literature in the 15th century, and has been the prevalent form since the 16th century.
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