Tra từ increase - Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

increase verb intransitive or transitive UK US [ɪnˈkriːs] [ increases increasing increased ]
<E > to (make something) become larger in amount or size
• Incidents of armed robbery have increased over the last few years.
• The cost of the project has increased dramatically/significantly since it began.
• Gradually increase the temperature to boiling point.
• Increased/Increasing efforts are being made to end the dispute.
Compare decrease
Thesaurus⁺: ↑Increasing and intensifying

Common errors:
Increase is not usually followed by the adverb 'up'. Don't say 'increase up', say increase:
✗ The number of homeless people has increased up by 5%.
• The number of homeless people has increased by 5%.

• We need to increase public awareness of the disease.
• Our main aim is to increase sales by 12% this year.
• Studies show that if a working environment is pleasant, productivity increases.
• Students do find that their workload increases throughout the course.
• Life expectancy in Europe has increased greatly in the 20th century.

noun countable or uncountable UK US [ˈɪn.kriːs]
1. <E > a rise in the amount or size of something
• price/tax increases
• There were 39, 000 new cases last year - an increase of 7 per cent.
• Any increase in production would be helpful.
Thesaurus⁺: ↑Increasing and intensifying
2. on the increase
increasing
• Homelessness is on the increase in many cities.
Thesaurus⁺: ↑Increasing and intensifying

Collocations:
Adjectives
an alarming dramatic marked significant substantial increase
• There has been an alarming increase in armed robberies recently.
a big considerable huge large massive increase
• The war saw a huge increase in the number of women working in factories.
a modest slight small increase
• Publishing showed a modest increase in profits.
annual average monthly overall increase
• We received an annual increase of 2% on our salaries.
rapid sharp sudden increase
• There was a sharp increase in the price of petrol.
gradual steady increase
• There has been a gradual increase in the number of people carrying donor cards.
Types
budget capital cost of living pay price rate spending tax wage increase
• Tax increases will never be popular with the public.
Prepositions
an increase in sth
• They were expected to work longer hours with no increase in pay.
an increase of [an amount]
• We are hoping for an increase of 20% in annual sales.
an increase from [one amount] to [a higher amount]
• Members saw an increase from £45 to £60 in their monthly fees.
(be) on the increase
• Car theft is on the increase.
an increase over sth
• The grant represents a 50% increase over previous funding levels.
Nouns
a percentage increase
• I can tell you the percentage increases in property values anywhere in the country.
a [10/40, etc] percent increase
• We have witnessed a 100 percent increase in house prices over the last two years.
rate of increase
• They wanted to slow the rate of increase in health care spending.
Verbs
report see show an increase
• The company reported huge increases in profits.
cause lead to result in an increase
• They fear that the new road will result in an increase of heavy traffic near their homes.

Common errors:
When you are talking about a thing that has increased, the most usual preposition to use after increase is in.
Don't say 'an increase of something', say an increase in something:
• There has been a 2% increase in the rate of unemployment.
Remember: when increase is followed by an amount, the correct preposition is of:
• There has been an increase of 2%.

• The tax increase will add 4p to a litre of petrol.
• I've managed to negotiate a five per cent pay increase with my boss.
• The Opposition has condemned the Government's proposed tax increases.
• Some people blame television for the increase in crime.
• An increase in average temperature by only a few degrees could cause environmental problems worldwide.