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Definition of Echo

Babylon English

reverberate; repeat a sound; transmit immediately each character received by a computer back to the sourse as to serve as a confirmation of receipt (Computers)
repetition of a sound produced by the reflection of sound waves from a solid surface; (Computers) user input printed to the screen so the user can read it; (Slang) person who reflects on another person; person who imitates another
Echo Definition from Arts & Humanities Dictionaries & Glossaries
English-Latin Online Dictionary
Glossary of Technical Theatre Terms
A repeated sound received late enough to be heard as distinct from the source. See Reverb.
Jon Primrose
Echo Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(v. t.)
To send back (a sound); to repeat in sound; to reverberate.
(v. t.)
To repeat with assent; to respond; to adopt.
(v. i.)
To give an echo; to resound; to be sounded back; as, the hall echoed with acclamations.
Fig.: Sympathetic recognition; response; answer.
A wood or mountain nymph, regarded as repeating, and causing the reverberation of them.
A sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound.
A nymph, the daughter of Air and Earth, who, for love of Narcissus, pined away until nothing was left of her but her voice.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

\ech"o\ (?), n.; pl. echoes (#). [l. echo, gr. &?; echo.] (whist) (a) a signal, played in the same manner as a trump signal, made by a player who holds four or more trumps (or as played by some exactly three trumps) and whose partner has led trumps or signaled for trumps. (b) a signal showing the number held of a plain suit when a high card in that suit is led by one's partner.
\ech"o\ (?), n.; pl. echoes (#). [l. echo, gr. &?; echo, sound, akin to &?;, &?;, sound, noise; cf. skr. vā&?; to sound, bellow; perh. akin to e. voice: cf. f. écho.]
1. a sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound. the babbling echo mocks the hounds. the woods shall answer, and the echo ring.
2. fig.: sympathetic recognition; response; answer. fame is the echo of actions, resounding them. many kind, and sincere speeches found an echo in his heart. l. stevenson.
3. (a) (myth. & poetic) a wood or mountain nymph, regarded as repeating, and causing the reverberation of them. sweet echo, sweetest nymph, that liv'st unseen within thy airy shell. (b) (gr. myth.) a nymph, the daughter of air and earth, who, for love of narcissus, pined away until nothing was left of her but her voice. compelled me to awake the courteous echo to give me answer from her mossy couch.
organ (mus.), a set organ pipes inclosed in a box so as to produce a soft, distant effect; -- generally superseded by the swell.
stop (mus.), a stop upon a harpsichord contrived for producing the soft effect of distant sound.

  similar words(9) 

 tautological echo 
 wood echo 
 to applaud to the echo 
 local echo 
 radar echo 
 remote echo 
 echo stop 
 echo organ 
Concise English-Irish Dictionary v. 1.1
English Phonetics
JM Welsh <=> English Dictionary
Adlais = n. m. reverberation; echo
Adlef = n. m. resonance, echo
Adsain = n. f. echo
Adseinio = v. to resound, to echo
Gwrthgloch = n. a resounding, an echo
Shakespeare Words
mountain nymph (from Greek mythology).
Australian Slang
1. one who reflects or imitates another: "What are you? An echo?"; 2. (SA) small returnable beer bottle
WordNet 2.0

1. (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained
(hypernym) nymph
(classification) Greek mythology

1. the persistence of a sound after its source has stopped
(synonym) reverberation, sound reflection, replication
(hypernym) reflection, reflexion, reflectivity
(hyponym) re-echo
(derivation) recall
2. a reply that repeats what has just been said
(hypernym) reply, response
(hyponym) echolalia
(derivation) repeat

1. to say again or imitate; "followers echoing the cries of their leaders"
(synonym) repeat
(hypernym) utter, emit, let out, let loose
(hyponym) recite
2. ring or echo with sound; "the hall resounded with laughter"
(synonym) resound, ring, reverberate
(hypernym) sound, go
(hyponym) consonate
(derivation) reverberation, sound reflection, replication
3. call to mind; "His words echoed John F. Kennedy"
(synonym) recall
(hypernym) resemble
(derivation) reverberation, sound reflection, replication
Echo Definition from Business & Finance Dictionaries & Glossaries
Company Info: Ticker, Name, Description
Echo Bay Mines Ltd.
Exchange: AMEX
Mines, processes and explores for gold and silver.
Echo Definition from Government Dictionaries & Glossaries
US Zip Codes
City: ECHO
City: ECHO
Military Abbreviations
European Commission's Humanitarian Aid Office
NATO Acronyms
European Community Humanitarian Operations
International Relations and Security Acronyms
European Community Humanitarian Office

Explosive Component Historical Output
Echo Definition from Social Science Dictionaries & Glossaries
Dream Dictionary
To dream of an echo, portends that distressful times are upon you. Your sickness may lose you your employment, and friends will desert you in time of need.
Ten Thousand Dreams Interpreted, or "What's in a dream": a scientific and practical exposition; By Gustavus Hindman, 1910. For the open domain e-text see: Guttenberg Project
Echo Definition from Science & Technology Dictionaries & Glossaries
European Commission Host Organization
Telecommunication Standard Terms
1. A wave that has been reflected by a discontinuity in the propagation medium. 2. A wave that has been reflected or otherwise returned with sufficient magnitude and delay to be perceived. (188 ) Note 1: Echoes are frequently measured in dB relative to the directly transmitted wave. Note 2: Echoes may be desirable (as in radar) or undesirable (as in telephone systems). 3. In computing, to print or display characters (a) as they are entered from an input device, (b) as instructions are executed, or (c) as retransmitted characters received from a remote terminal. 4. In computer graphics, the immediate notification of the current values provided by an input device to the operator at the display console.
The energy return of a radar signal after it has hit the target. Also called a radar echo.
Technical English by wpv
To reflect received data to the sender. For example, keys depressed on a keyboard are usually echoed as characters displayed on the screen.
Local echo ON causes all transmitted data to be sent to the screen of the sending computer. Remote echo ON causes everything that the remote computer (the one you are communicating with) transmits to be duplicated on your computer's screen. See Duplex.
ICAO aircraft designation codes
TECNAM P-92 Echo L1P L
Oceanographic, Meteorologal & Climatologal abbreviations and acronyms
Earth Observing System ClearingHOuse
Echo Definition from Computer & Internet Dictionaries & Glossaries
Computer Abbreviations v1.5
European Commission Host Organization [Internet]
9300+ Computer Acronyms
European Commission Host Organization
Uri's File.*Xten.c.ons*
European Commission Host Organization [Internet]
PHP Functions (4.3.2)
(PHP 3, PHP 4 )
echo -- Output one or more strings
void echo ( string arg1 [, string argn...])
More Info
Jargon File
[FidoNet] n. A topic group on FidoNet's echomail system. Compare newsgroup.
A Glossary of Internet & PC Terminology
This term has many different uses in IT but basically it describes the action of transmitting a received signal back to the sender - a good way of testing that something has actually been received.
TCP/IP port numbers
7/udp Echo                           
TCP/IP Ports Assignments
TCP/IP Ports Assignments (Intrusive)
Glossary of Electronic Music Terms
A discrete repetition of a sound, as opposed to reverberation, which is a continuous wash of closely spaced, non-discrete echoing sound. See delay (3), reverb.
Pablo Aguilar
Echo Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
ECHO may stand for:
  • ECHO (European Commission), the European Community Humanitarian aid Office
  • ECHO (music award), a German music award
  • Echo 1 communications satellite
  • Shortened Echocardiography
  • Enteric Cytopathic Human Orphan virus
  • ECHO Lake Aquarium and Science Center in Burlington, Vermont
  • Extended Care Health Option, a supplemental insurance program for disabled dependents of U.S. uniformed service members
  • ECHO IV,"Electronic Computer for Home Operation", an experimental home computer from 1966
  • Gloucestershire Echo, a daily newspaper founded in 1873

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The Exoplanet Characterisation Observatory (EChO) was a proposed space telescope as part of the Cosmic Vision roadmap of the European Space Agency, and competed with four other missions for the M3 slot in the programme. On February 19, 2014, the PLATO mission was selected in place of the other candidates in the programme, including EChO.

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In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source. The time delay is the extra distance divided by the speed of sound. The word echo derives from the Greek ἠχώ (ēchō), itself from ἦχος (ēchos), "sound". Echo in the folk story of Greek is a mountain nymph who's ability to speak was cursed, only able to repeat the last words anyone spoke to her. Animals that use echoes are cetaceans (dolphins and whales) and bats.

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Echo Definition from Entertainment & Music Dictionaries & Glossaries
Guitar Glossary
A delayed repetition of a sound or signal, usually at least 50 milliseconds after the original sound.
Copyright © 1996-2006 Guitar Nine Records All Rights Reserved.
film and video
A sound wave that has been reflected and returned with sufficient magnitude and delay to be perceived as a wave distinct from that which was initially transmitted.
English to Federation-Standard Golic Vulcan