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English definition of “noisy”

noisy

adjective uk   /ˈnɔɪ.zi/ us  

noisy adjective (SOUND)

A2 making a lot of noise: a noisy crowd of fans noisy neighbours

noisy adjective (SIGNAL)

specialized electronics having an unwanted change in signal, especially of an electronic device: a noisy signal
noisily
adverb uk   /-zɪ.li/ us  
A motorbike started up noisily outside.
noisiness
noun [U] uk   /-nəs/ us  
(Definition of noisy from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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