what is an echo give a word or sentence
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An echo is a sound or sounds caused by the reflection of sound waves from a surface back to the listener.
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Explanation:
An echo is a sound caused by a noise being reflected off a surface such as a wall. He heard the echo of her footsteps along the hallway. sound If a sound echoes, it is reflected off a surface and can be heard again after the original sound has stopped. His feet echoed on the bare board floor.
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