- The definition of an echo is a sound that is repeating after the original sound ended.
An example of an echo is the sound that comes back to you as a repeat of your own shout.
- Echo is defined as a sound repeating by sound wave reflection, having a lasting or far reaching impact, or repeating what someone else has said.
- An example of echo is the repeating of a sound created by footsteps in an empty marble hallway.
- An example of echo is a new social program having a far reaching and lasting impact on society.
- An example of echo is a teacher agreeing with and repeating what a parent says.
- the repetition of a sound by reflection of sound waves from a surface
- a sound so produced
- any repetition or imitation of the words, style, ideas, etc. of another
- a person who thus repeats or imitates
- sympathetic response
- Electronics a radar wave reflected from an object, appearing as a spot of light on a radarscope
- [E-]Gr. Myth. a nymph who, because of her unreturned love for Narcissus, pines away until only her voice remains
- a soft repetition of a phrase
- an organ stop for producing the effect of echo
- the reception of two similar and almost simultaneous signals because one of them has been delayed slightly by reflection from the E layer in transmission
Origin of echoMiddle English ecco from Classical Latin echo from Classical Greek ?ch? from Indo-European base an unverified form (s)wa?h-, variant, variety of an unverified form wag-, to cry out from source Classical Latin vagire, Old English swogan, to sound, roar
intransitive verb-·oed, -·o·ing
- to resound with an echo; reverberate
- to be repeated as or like an echo
- to repeat (another's words, ideas, etc.)
- to repeat the words, etc. of (another person)
- to repeat or reflect (sound) from a surface
- a. Repetition of a sound by reflection of sound waves from a surface.b. The sound produced in this manner.
- A repetition or an imitation: a fashion that is an echo of an earlier style.
- A remnant or vestige: found echoes of past civilizations while examining artifacts in the Middle East.
- One who imitates another, as in opinions, speech, or dress.
- A sympathetic response: Their demand for justice found an echo in communities across the nation.
- A consequence or repercussion: Her resignation had echoes throughout the department.
- Repetition of certain sounds or syllables in poetry, as in echo verse.
- Music Soft repetition of a note or phrase.
- Electronics A reflected wave received by a radio or radar.
- An echocardiogram.
verbech·oed, ech·o·ing, ech·oes
- To repeat (a sound) by the reflection of sound waves from a surface.
- To repeat or imitate: followers echoing the cries of their leader; events that echoed a previous incident in history.
- To be repeated by or as if by an echo: The shout echoed off the wall. The speaker's words echoed in her mind.
- To resound with or as if with an echo; reverberate: rooms echoing with laughter.
Origin of echoMiddle English from Old French from Latin ēchō from Greek ēkhō
(plural echoes or echos)
(third-person singular simple present echoes, present participle echoing, simple past and past participle echoed)
- (of a sound or sound waves, intransitive) To reflect off of a surface and return.
- (by extension) To repeat back precisely what another has just said: to copy in the imitation of a natural echo.
- (by extension) To repeat (another's speech, opinion, etc.).
- Sid echoed his father's point of view.
From Ancient Greek Ἠχώ (Ēkhō, “sound”).
echo - Computer Definition
Also known as the rain-barrel effect, echo is signal reflection. At any point in a circuit where an electromagnetic wave meets a discontinuity, a portion of the wave is reflected back in the direction of the transmitter. Such discontinuities can be caused by impedance mismatches, mismatches between line and balancing networks, and irregular spacing of loading coils. Echo is imperceptible in human-to-human conversations as long as the echo return is weak and the total roundtrip delay is not longer than 30
(1) A repetition of a signal in a communications line. The difference in electrical characteristics at opposite ends can cause the echo.
(2) In communications, to transmit received data back to the sending station allowing the user to inspect visually what was received. A local echo displays what you type on your screen.
(3) (Echo) Amazon's virtual assistant. See Amazon Echo.
(4) A DOS, Windows and OS/2 screen command that displays messages and turns off/on screen responses. See batch file abc's.