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- DictionarySound/sound/
noun
- 1. vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear: "light travels faster than sound"
- 2. sound produced by continuous and regular vibrations, as opposed to noise.
verb
- 1. emit or cause to emit sound: "a loud buzzer sounded"
- 2. convey a specified impression when heard: "he sounded worried"
A sound is a noise, something you can hear if you're in the right spot and it's loud enough. A doorbell, a fire alarm, a cat's meow, or your brother's snoring — they’re all sounds.
In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.
4 days ago · Sound is energy that travels in waves through air, water, or other substances, and can be heard. The aeroplane will travel at twice the speed of sound. 3. singular noun. The sound on a television, radio, or CD player is what you hear coming from the machine. Its loudness can be controlled.
noun. uk / saʊnd / us. Add to word list. A2 [ C, U ] something that you hear or that can be heard: I could hear the sounds of the city through the open window. She stood completely still, not making a sound. Can you turn the sound up (= make a radio, television, etc louder)? Fewer examples. Can we make the sound any clearer?
Definition of sound noun from the Oxford Advanced Learner's Dictionary. sound. noun. /saʊnd/ Idioms. something you hear. [countable] something that you can hear synonym noise. a loud/soft/faint sound. a high/low sound. a buzzing/hissing/popping sound. He crept into the house trying not to make a sound.
Britannica Dictionary definition of SOUND. 1. : something that is heard. [count] the sound of footsteps/thunder. the sounds of laughter. I heard a loud, buzzing sound. [= noise] [+] more examples. [noncount] devices used to record sound. measuring the speed of sound [=the speed at which the vibrations that create sounds move through the air] 2.
Mar 29, 2024 · Sound, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. A purely subjective, but unduly restrictive, definition of sound is also possible, as that which is perceived by the ear. Learn more about the properties and types of sound in this article.
