Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “pump sth up”

pump sth up

phrasal verb with pump     /pʌmp/ verb [T]
to fill something with air using a pump: You should pump your tyres up.Enlarging and inflatingBecoming bigger
(Definition of pump sth up from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “pump sth up” in other dictionaries

Translations of “pump sth up”

Word of the Day

beneficiary

a person or group who receives money, advantages, etc. as a result of something else

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More