Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “be up in arms”

be up in arms

to be very upset and angry about something: Local residents are up in arms over plans to close the swimming pool.Angry and displeasedBad-tempered
(Definition of be up in arms from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “be up in arms” in other dictionaries

Word of the Day

work out

to exercise in order to improve the strength or appearance of your body

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