Meaning of “uproar” - Learner’s Dictionary

uproar

noun [ U, no plural ] uk us /ˈʌprɔːr/

a situation in which many people complain about something angrily:

The book caused an uproar in the United States.
Local residents are UK in uproar/ US in an uproar over plans for the new road.

(Definition of “uproar” from the Cambridge Learner’s Dictionary © Cambridge University Press)