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English definition of “sound”

sound

verb (NOISE)    /saʊnd/
[I or T] to make a noise: If the alarm sounds, leave the building immediately. It sounds like a bird. He sounds (= speaks) just like someone I used to work with. Sounding the car's horn, she drove at high speed through the crowded streets.Sounds made by objects, movement or impactSounds made by humans with their mouths sound the alarm to cause a noise to be made or say or shout a message to warn people about something: Quick, sound the alarm - there's a fire in the machine room!Threats and warnings
(Definition of sound verb (NOISE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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