Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “boost”

boost

verb  /bust/ us  

boost verb (MAKE BETTER)

[T] to improve or increase something: We took various steps to try to boost sales.

boost verb (LIFT)

[T always + adv/prep] to lift someone or something by pushing from below: She boosted the little boy up to see over the fence.

boost

noun /bust/

boost noun (IMPROVEMENT)

[C usually sing] an improvement or increase, or an action that causes this: The president’s approval rating got a boost following his speech.

boost noun (LIFT)

[C] a push from below that lifts a person or thing: I need a boost to get over the wall.
(Definition of boost from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of boost?
Add Cambridge dictionaries to your browser to your website

Definitions of “boost” in other dictionaries

Word of the Day

knack

a skill or an ability to do something easily and well

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