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English definition of “noise”

noise

noun [C or U] (SOUND)    /nɔɪz/
A1 a sound or sounds , especially when it is unwanted , unpleasant , or loud : The noise out in the street was deafening . I heard a loud noise and ran to the window . traffic / background noise dangerously high noise levels Sound and its properties Grammar:Sound or noise?Sound and noise are nouns. We can use them both as countable or uncountable nouns. Both refer to something which you can hear, but when a sound is unwanted or unpleasant, we call it a noise:
(Definition of noise noun (SOUND) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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