Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “improvise”

improvise

verb [I/T]    /ˈɪm·prəˌvɑɪz/
to invent or provide something at the time when it is needed without having already planned it: [T] We improvised a mattress from a pile of blankets. music To improvise music or speech is to invent it while you are performing it: [I] Hughes encourages young actors to improvise during rehearsals.
(Definition of improvise verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of improvise

Definitions of “improvise” in other dictionaries

Word of the Day

generous

willing to give money, help, kindness, etc., especially more than is usual or expected

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