Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “start up something”

start up something

verb phrasal verb with start  /stɑrt/ us  


to begin a new company, organization, or activity: We started up an opera theater company that toured all over the South.
(Definition of start up something phrasal verb, verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of start up something?
Add Cambridge dictionaries to your browser to your website

Word of the Day


a measure for liquid equal to about half a litre

Word of the Day


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