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English definition of “sound”

sound

noun (NOISE)    /saʊnd/
A2 [C or U] something that you can hear or that can be heard: They could hear the sound of a bell tolling in the distance. She stood completely still, not making a sound. Suddenly we heard a loud knocking sound from the engine. Sound can travel over very large distances in water.Sound and its properties [U] the activity of recording and broadcasting sound such as from a performance of music or for a film: a sound engineer/recordingRecording sounds and images [U] the volume or quality of the sound of a television or film: Could you turn the sound down/up on the TV?Recording sounds and images [C] the particular quality of the music that a musician or a group of musicians produce: The band's sound is a distinctive mixture of funk and rap.Playing musicSinging in general 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:See more
(Definition of sound noun (NOISE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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