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echo
[ ek-oh ]
/ ˈɛk oʊ /
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noun, plural ech·oes.
verb (used without object), ech·oed, ech·o·ing.
to emit an echo; resound with an echo: The hall echoed with cheers.
to be repeated by or as by an echo: Shouts echoed through the street.
verb (used with object), ech·oed, ech·o·ing.
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Origin of echo
1300–50; Middle English ecco<Latin ēchō<Greek, akin to ēchḗ sound
OTHER WORDS FROM echo
Words nearby echo
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use echo in a sentence
British Dictionary definitions for echo (1 of 4)
echo
/ (ˈɛkəʊ) /
noun plural -oes
verb -oes, -oing or -oed
Derived forms of echo
echoing, adjectiveecholess, adjectiveecho-like, adjectiveWord Origin for echo
C14: via Latin from Greek ēkhō; related to Greek ēkhē sound
British Dictionary definitions for echo (2 of 4)
Echo1
/ (ˈɛkəʊ) /
noun
either of two US passive communications satellites, the first of which was launched in 1960
British Dictionary definitions for echo (3 of 4)
Echo2
/ (ˈɛkəʊ) /
noun
Greek myth a nymph who, spurned by Narcissus, pined away until only her voice remained
British Dictionary definitions for echo (4 of 4)
Echo3
/ (ˈɛkəʊ) /
noun
communications code word for the letter e
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for echo
echo
[ ĕk′ō ]
A repeated sound that is caused by the reflection of sound waves from a surface. The sound is heard more than once because of the time difference between the initial production of the sound waves and their return from the reflecting surface.
A wave that carries a signal and is reflected. Echoes of radio signals (carried by electromagnetic waves) are used in radar to detect the location or velocity of distant objects.
The American Heritage® Science Dictionary
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