B1 to (make something) become larger in amount or size:
The cost of the project has increased dramatically/significantly since it began.
Gradually increase the temperature to boiling point.
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- 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.
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B2 a rise in the amount or size of something:
Any increase in production would be helpful.
on the increase
C1 increasing:
Homelessness is on the increase in many cities.
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- The tax increase will add 4p to a litre of petrol.
- I've managed to negotiate a five percent 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.
Thesaurus: synonyms and related words