- 1making a lot of noise noisy children/traffic/crowds a noisy protest (= when people shout) The engine is very noisy at high speed. They are a small but noisy pressure group (= they try to attract attention to their ideas by frequent discussion and argument).
- 2full of noise a noisy classroom The streets were very noisy throughout the night.
NAmE//ˈnɔɪzəli//
adverb The children were playing noisily upstairs.See noisy in the Oxford Advanced Learner's DictionaryCheck pronunciation: noisy