Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “fire sth up”

fire sth up

informal phrasal verb with fire     /faɪər/ verb [T] (UK also sack)
IT to start a machine, piece of equipment, computer program, etc.: I fired up my computer and noticed that it was running extremely slowly.
(Definition of fire sth up from the Cambridge Business English Dictionary © Cambridge University Press)
Focus on the pronunciation of fire sth up

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