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Oxford CEFR | B1ACADEMICSPEAKINGWRITINGIELTS504 Words
ex‧pand /ɪkˈspænd/  verb
گسترش دادن، افزایش یافتن
بسط یافتن، منبسط شدن، منبسط کردن، توسعه دادن، بسط دادن، پهن کردن، به تفصیل شرح دادن، مهندسی: توسعه دادن، حقوقی: توسعه دادن و افزایش دادن حجم یا مقدار چیزی
▼ ادامه توضیحات دیکشنری؛ پس از بنر تبلیغاتی ▼
 Advanced Persian Dictionary
Advanced Persian Dictionaryکامپیوتر: توسعه دادن
 [TahlilGaran] Persian Dictionary ▲
  Synonyms & Related Words
Synonyms & Related Wordsexpand[verb]Synonyms:- increase, amplify, broaden, develop, enlarge, extend, grow, magnify, swell, widen
- spread (out), diffuse, stretch (out), unfold, unfurl, unravel, unroll
- expand on: go into detail about, amplify, develop, elaborate on, embellish, enlarge on, expatiate on, expound on, flesh out 
Antonyms: contract, abridge, limit, restrict
Contrasted words: condense, decrease, deflate, shrink, shrivel, dwindle, lessen, compress, contract, de-escalate, circumscribe
Related Words: grow, 
bulk (up), 
enlarge, 
fill (out), 
bolster, 
mushroom, 
plim, 
puff (up), 
detail, 
explicate, 
augment, 
discourse, 
expatiate, 
prolong, 
protract 
English Thesaurus: increase, go up, rise, grow, escalate, ... [TahlilGaran] English Synonym Dictionary ▲
  English Dictionary
English Dictionaryex‧pand S3 W3 AC /ɪkˈspænd/ 
 verb [
Word Family: verb: 
expand; 
noun: 
expansion; 
adjective: 
expandable]
[
Date: 1400-1500; 
Language: Latin; 
Origin: expandere, from pandere 'to spread']
1.  [intransitive and transitive] to become larger in size, number, or amount, or to make something become larger ⇒ 
expansion Antonym : contract: 
 Water expands as it freezes.
 Water expands as it freezes. Sydney’s population expanded rapidly in the 1960s.
 Sydney’s population expanded rapidly in the 1960s. exercises that expand the chest muscles
 exercises that expand the chest muscles his expanding waistline2.  [intransitive and transitive]
 his expanding waistline2.  [intransitive and transitive] if a company, business etc expands, or if someone expands it, they open new shops, factories etc ⇒ 
expansion: 
 The computer industry has expanded greatly over the last decade.
 The computer industry has expanded greatly over the last decade. The hotel wants to expand its business by adding a swimming pool.
 The hotel wants to expand its business by adding a swimming pool. the rapidly expanding field of information technologyexpand into
 the rapidly expanding field of information technologyexpand into We have plans to expand into the U.S. market.3.  [intransitive] literary
 We have plans to expand into the U.S. market.3.  [intransitive] literary to become more confident and start to talk more: 
 After a few whiskies he started to expand a little.expand on/upon something phrasal verb
 After a few whiskies he started to expand a little.expand on/upon something phrasal verb to add more details or information to something that you have already said: 
 Payne later expanded on his initial statement.
 Payne later expanded on his initial statement.  [TahlilGaran] Dictionary of Contemporary English ▲
  Collocations
Collocationsexpand verb ADV.  considerably, dramatically, enormously, greatly, hugely, massively, significantly, vastly The business has expanded greatly over the last year. 
 further  |  fast, quickly, rapidly  |  gradually, slowly  |  suddenly  |  steadily VERB + EXPAND  aim to, be eager to, be keen to, hope to, look to, plan to, seek to, want to The firm is looking to expand its operations overseas. 
 help (to) The store has helped expand the British cheese market by encouraging small dairy farmers. 
 begin to  |  continue to  |  seem to PREP.  from The number of managers has expanded from 700 to 1,300. 
 into The village has expanded into a town. 
 to  [TahlilGaran] Collocations Dictionary ▲
  Common Errors
Common Errorsexpandverb1.  BAD
 BAD: I'm doing the course to expand my job opportunities.
 GOOD
 GOOD: I'm doing the course to increase my job opportunities.
 Usage Note:expand
 Usage Note:expand = become (or make something become) larger in size, area or activity: 'Metals expand when they are heated.' 'Within three years this small business had expanded into a chain of department stores.' 
increase  = become (or make something become) larger in number, amount, cost, etc: 'Sales of new cars increased from 1.2 million in 1993 to 1.8 million in 1994.' 'By the year 2020 the government aims to increase the number of secondary schools by 50%.' 
2.  BAD
 BAD: The epidemic began to expand rapidly.
 GOOD
 GOOD: The epidemic began to spread rapidly.
 Usage Note:
 Usage Note:When you are talking about a disease, fire, war, social problem, feeling, etc, use 
spread : 'The army was called in to stop the riots from spreading.' 'Dissatisfaction with the present government seems to be spreading.'
3.  BAD
 BAD: The newspapers are not allowed to expand political ideas.
 GOOD
 GOOD: The newspapers are not allowed to spread political ideas.
 Usage Note:
 Usage Note:When you are talking about news, information, ideas, etc, use 
spread : 'Within hours the news of the bank's collapse had spread all over the world.' 'I hope you haven't been spreading rumours.' 
   [TahlilGaran] Dictionary of Common Errors ▲
  Thesaurus
Thesaurusincrease to become larger in number, amount, or degree: 
 Sales increased by 25%.
 Sales increased by 25%.  The level of violence has increased.go up
 The level of violence has increased.go up to increase. 
Go up is less formal than 
increase, and is the usual verb to use in everyday English: 
 The price of coffee has gone up.rise
 The price of coffee has gone up.rise to increase. 
Rise sounds a little formal and is often used when talking about the level of something increasing: 
 The demand for oil has been rising steadily.
 The demand for oil has been rising steadily.  Living standards have risen dramatically.grow
 Living standards have risen dramatically.grow to increase, especially gradually over a period of time – used about numbers or amounts: 
 Since 1990, US imports of foreign goods have grown at a rate of 7.7% per year.
 Since 1990, US imports of foreign goods have grown at a rate of 7.7% per year.  The number of people working from home has grown substantially.escalate
 The number of people working from home has grown substantially.escalate to increase to a high level – used about things that you do not want to increase such as costs, crimes, or violence: 
 Fuel prices are escalating.
 Fuel prices are escalating.  The fighting has escalated.double/triple
 The fighting has escalated.double/triple to become twice as much or three times as much: 
 Since 1950, the number of people dying from cancer has almost doubled.
 Since 1950, the number of people dying from cancer has almost doubled.  The company’s profits tripled last quarter.expand
 The company’s profits tripled last quarter.expand to become larger in size, or to include a wider range of activities: 
 The business has expanded at a rate of 15% per year.
 The business has expanded at a rate of 15% per year.  We are hoping to expand into mobile phone services.soar
 We are hoping to expand into mobile phone services.soar to increase and reach a very high level – used about numbers and amounts, or about feelings: 
 The temperature soared to 36.6 degrees centigrade.
 The temperature soared to 36.6 degrees centigrade.  His confidence soared.
 His confidence soared.  The singer’s popularity has soared.shoot up
 The singer’s popularity has soared.shoot up to increase very quickly and suddenly – used about prices, numbers, or temperatures: 
 Share prices shot up 30% over the last week.put something up
 Share prices shot up 30% over the last week.put something up to increase prices, taxes etc. 
Put up something is less formal than 
increase, and is the usual verb to use in everyday English: 
 The landlord has put the rent up again.
 The landlord has put the rent up again.  They’re always putting up gas prices.raise
 They’re always putting up gas prices.raise to increase something such as prices or taxes, or levels or standards: 
 The bank has raised interest rates for the third time this year.
 The bank has raised interest rates for the third time this year.  The school aims to raise students’ levels of achievement.boost
 The school aims to raise students’ levels of achievement.boost to increase sales, profits, production etc, especially when they have been lower than you want them to be: 
 Growing affluence has boosted sales.
 Growing affluence has boosted sales.  Oil exports boosted the economy.extend
 Oil exports boosted the economy.extend to increase something such as your power or influence, or the number of things you are involved in: 
 We are hoping to extend the range of services that we offer.
 We are hoping to extend the range of services that we offer.  The company plans to extend its dominance of the world car market.step up something
 The company plans to extend its dominance of the world car market.step up something to increase your efforts or activities, especially to change a situation: 
 Security has been stepped up following the bombing.
 Security has been stepped up following the bombing.  Local people have stepped up their campaign to prevent a prison being built in their neighbourhood.heighten
 Local people have stepped up their campaign to prevent a prison being built in their neighbourhood.heighten to increase a feeling or effect: 
 The attack has heightened concerns about racism in schools.
 The attack has heightened concerns about racism in schools.  Hunger can heighten the effect that alcohol has on you.maximize
 Hunger can heighten the effect that alcohol has on you.maximize to increase something as much as possible: 
 Businesses try to maximize efficiency and cut costs.
 Businesses try to maximize efficiency and cut costs.  To maximize the chances of a successful pregnancy, you should make sure that you eat well.big/large
 To maximize the chances of a successful pregnancy, you should make sure that you eat well.big/large  The company has announced a big increase in its profits for last year.slight/small
 The company has announced a big increase in its profits for last year.slight/small  Doctors have reported a slight increase in the number of deaths caused by the disease.
 Doctors have reported a slight increase in the number of deaths caused by the disease.  The temperature increase was quite small.great  (=big)
 The temperature increase was quite small.great  (=big)  There has been a great increase in air traffic in the last twenty years.huge/massive  (=very big)
 There has been a great increase in air traffic in the last twenty years.huge/massive  (=very big)  There was a huge increase in emigration after the war.substantial/considerable  formal (=quite big)
 There was a huge increase in emigration after the war.substantial/considerable  formal (=quite big)  He negotiated a substantial increase in pay for the workers.significant/marked  (=definite and noticeable)
 He negotiated a substantial increase in pay for the workers.significant/marked  (=definite and noticeable)  Over the last few years, there has been a marked increase in tourism to developing countries.dramatic/sharp  (=large and sudden)
 Over the last few years, there has been a marked increase in tourism to developing countries.dramatic/sharp  (=large and sudden)  What has led to this dramatic increase in prices?rapid  (=happening quickly)
 What has led to this dramatic increase in prices?rapid  (=happening quickly)  Recently there has been a rapid increase in fish farming.modest  (=small)
 Recently there has been a rapid increase in fish farming.modest  (=small)  The figures reveal a modest increase in the birth rate.gradual (=happening slowly)
 The figures reveal a modest increase in the birth rate.gradual (=happening slowly)  Her temperature chart showed a gradual increase over the preceding six hours.steady  (=happening slowly but continuously)
 Her temperature chart showed a gradual increase over the preceding six hours.steady  (=happening slowly but continuously)  The university has benefited from a steady increase in student numbers.a threefold/fourfold/fivefold etc increase (=an increase by three, four etc times)
 The university has benefited from a steady increase in student numbers.a threefold/fourfold/fivefold etc increase (=an increase by three, four etc times)  The figures show a threefold increase in incidents of car theft.a 10%/50% etc increase
 The figures show a threefold increase in incidents of car theft.a 10%/50% etc increase  A 5% increase in petrol prices is predicted.an annual increase
 A 5% increase in petrol prices is predicted.an annual increase  The company reported a 10% increase in pre-tax profits.lead to an increase
 The company reported a 10% increase in pre-tax profits.lead to an increase  They argue that the abolition of the death penalty has led to an increase in the number of murders.cause/bring about an increase
 They argue that the abolition of the death penalty has led to an increase in the number of murders.cause/bring about an increase  The heatwave brought about a massive increase in water consumption.a price increase
 The heatwave brought about a massive increase in water consumption.a price increase  We expect a price increase of 1.4% this year.a fare increase
 We expect a price increase of 1.4% this year.a fare increase  The airline instituted a 10% fare increase.a wage/pay/salary increase
 The airline instituted a 10% fare increase.a wage/pay/salary increase  Canadian workers received a 5.4% wage increase.a tax increase
 Canadian workers received a 5.4% wage increase.a tax increase  The government had no choice but to impose a tax increase.be on the increase (=be increasing)
 The government had no choice but to impose a tax increase.be on the increase (=be increasing)  Knife attacks are on the increase.the rate of increase
 Knife attacks are on the increase.the rate of increase  The rate of increase in the number of violent crimes is much higher than under the previous government.growth noun [singular, uncountable]
 The rate of increase in the number of violent crimes is much higher than under the previous government.growth noun [singular, uncountable] an increase in the number, size, or importance of something. 
Growth is also used when saying that a company or a country’s economy becomes more successful: 
 The astonishing growth of the Internet has had a dramatic effect on people’s lives.
 The astonishing growth of the Internet has had a dramatic effect on people’s lives.  Japan experienced a period of rapid economic growth.
 Japan experienced a period of rapid economic growth.  Many people are concerned about the enormous growth in the world’s population.surge noun [countable usually singular]
 Many people are concerned about the enormous growth in the world’s population.surge noun [countable usually singular] a sudden increase in something such as profits, demand, or interest: 
 There has been a big surge in demand for organically grown food.
 There has been a big surge in demand for organically grown food.  We have seen a tremendous surge of interest in Chinese medicine.gain noun [uncountable and countable]
 We have seen a tremendous surge of interest in Chinese medicine.gain noun [uncountable and countable] an increase in the amount or level of something - used especially in business or political contexts, or when talking about an increase in someone’s weight: 
 sales gains
 sales gains  The December job figures show a net gain of 81,000 jobs.
 The December job figures show a net gain of 81,000 jobs.  The party has experienced a gain in popularity.
 The party has experienced a gain in popularity.  The amount of weight gain during pregnancy varies.hike noun [countable] informal especially American English
 The amount of weight gain during pregnancy varies.hike noun [countable] informal especially American English a large or sudden increase in prices or taxes - often used in newspaper reports: 
 Despite a 25% hike in fuel costs, the airline made a profit last year.
 Despite a 25% hike in fuel costs, the airline made a profit last year.  tax hikes
 tax hikes  wage hikesexplosion noun [countable]
 wage hikesexplosion noun [countable] a sudden very large increase in the amount or number of something: 
 There has been an explosion in the number of fast food restaurants.
 There has been an explosion in the number of fast food restaurants.  The country experienced a population explosion.
 The country experienced a population explosion.  The book caused an explosion of interest in Renaissance Italy.boom noun [singular]
 The book caused an explosion of interest in Renaissance Italy.boom noun [singular] a sudden large increase in trade, profits or sales, with the result that a country, company, or industry becomes very successful. 
Boom is also used about a sudden increase in interest in something, with the result that it becomes very popular: 
 the German economic boom of the 1960s
 the German economic boom of the 1960s  the Internet boom
 the Internet boom  There has been a boom in sales of diet books and videos.
 There has been a boom in sales of diet books and videos. [TahlilGaran] English Thesaurus ▲
 increase to make something larger in number, amount, or degree: 
 Being overweight increases the risk of having a heart attack.
 Being overweight increases the risk of having a heart attack.  We need to increase the number of police officers on the streets.put something up
 We need to increase the number of police officers on the streets.put something up to increase prices, taxes etc. 
Put up something is less formal than 
increase, and is the usual verb to use in everyday English: 
 The landlord has put the rent up again.
 The landlord has put the rent up again.  They’re always putting up gas prices.raise
 They’re always putting up gas prices.raise to increase something such as prices or taxes, or levels or standards: 
 The bank has raised interest rates for the third time this year.
 The bank has raised interest rates for the third time this year.  The school aims to raise students’ levels of achievement.double/triple
 The school aims to raise students’ levels of achievement.double/triple to increase the amount of something so that it is twice or three times as large: 
 The airline plans to double the number of passengers it carries by 2015.
 The airline plans to double the number of passengers it carries by 2015.  High blood pressure triples the risk of strokes.boost
 High blood pressure triples the risk of strokes.boost to increase sales, profits, production etc, especially when they have been lower than you want them to be: 
 Growing affluence has boosted sales.
 Growing affluence has boosted sales.  Oil exports boosted the economy.expand
 Oil exports boosted the economy.expand to increase something so that it contains a wider range of things, or to increase the size of a business: 
 The company plans to expand its retail operations.
 The company plans to expand its retail operations.  Supermarkets have expanded their ranges to include non-food items.extend
 Supermarkets have expanded their ranges to include non-food items.extend to increase something such as your power or influence, or the number of things you are involved in: 
 We are hoping to extend the range of services that we offer.
 We are hoping to extend the range of services that we offer.  The company plans to extend its dominance of the world car market.step up something
 The company plans to extend its dominance of the world car market.step up something to increase your efforts or activities, especially to change a situation: 
 Security has been stepped up following the bombing.
 Security has been stepped up following the bombing.  Local people have stepped up their campaign to prevent a prison being built in their neighbourhood.heighten
 Local people have stepped up their campaign to prevent a prison being built in their neighbourhood.heighten to increase a feeling or effect: 
 The attack has heightened concerns about racism in schools.
 The attack has heightened concerns about racism in schools.  Hunger can heighten the effect that alcohol has on you.maximize
 Hunger can heighten the effect that alcohol has on you.maximize to increase something as much as possible: 
 Businesses try to maximize efficiency and cut costs.
 Businesses try to maximize efficiency and cut costs.  To maximize the chances of a successful pregnancy, you should make sure that you eat well.
 To maximize the chances of a successful pregnancy, you should make sure that you eat well. [TahlilGaran] English Thesaurus ▲