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echo.

A reflected sound that is heard again by its initial observer.

4 characters2 syllables approx.English language

Meaning & usage

noun/ˈɛk.əʊ/Received-Pronunciation/ˈɛk.oʊ/General-American, Philippines
  1. A reflected sound that is heard again by its initial observer.

    countable · uncountable
  2. An utterance repeating what has just been said.

    countable · uncountable
  3. A device in verse in which a line ends with a word which recalls the sound of the last word of the preceding line.

    countable · uncountable
  4. Sympathetic recognition; response; answer.

    countable · figuratively · uncountable
  5. Something that reflects or hearkens back to an earlier thing.

    countable · figuratively · uncountable
  6. An insignificant indirect result; a ripple.

    countable · figuratively · uncountable
  7. The displaying on the command line of the command that has just been executed.

    countable · uncountable
  8. An individual discussion forum using the echomail system.

    countable · uncountable
  9. Alternative letter-case form of Echo from the NATO/ICAO Phonetic Alphabet.

    alt-of · countable · uncountable
  10. 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 signalled for trumps.

    countable · uncountable
  11. A signal showing the number held of a plain suit when a high card in that suit is led by one's partner.

    countable · uncountable
  12. An antisemitic punctuation symbol or marking, ((( ))), placed around a name or phrase to indicate the person is Jewish or the entity is controlled by Jewish people; or repurposed or reclaimed to proudly declare one's Jewishness or solidarity with Jews.

    countable · uncountable
  13. Clipping of echocardiography.

    abbreviation · alt-of · clipping · colloquial · uncountable
  14. Clipping of echocardiogram.

    abbreviation · alt-of · clipping · colloquial · countable
Where this word comes from

Etymology tree Proto-Indo-European *sweh₂gʰ-der. Proto-Hellenic *wākʰā́ Ancient Greek ἠχή (ēkhḗ) Proto-Indo-European *-ṓy Ancient Greek -ώ (-ṓ) Ancient Greek ἠχώ (ēkhṓ)bor. Latin ēchō Medieval Latin ēccōbor. Middle English eccho English echo From Middle English eccho, ecco, echo, ekko, from Medieval Latin ēccō, from Latin ēchō, from Ancient Greek ἠχώ (ēkhṓ), from ἠχή (ēkhḗ, “sound”). Possibly from the same Proto-Indo-European root as sough.

verb/ˈɛk.əʊ/Received-Pronunciation/ˈɛk.oʊ/General-American, Philippines
  1. Of a sound or sound waves: to reflect off a surface and return; to reverberate or resound.

    intransitive
  2. Of a rumour, opinion, etc.: to spread or reverberate.

    figuratively · intransitive
  3. To reflect back (a sound).

    transitive
  4. To repeat (another’s speech, opinion, etc.).

    figuratively · transitive
    Sid echoed his father’s point of view.
  5. To repeat its input as input to some other device or system.

    transitive
  6. To give the echo signal, informing one's partner about cards one holds.

    intransitive
Where this word comes from

Etymology tree Proto-Indo-European *sweh₂gʰ-der. Proto-Hellenic *wākʰā́ Ancient Greek ἠχή (ēkhḗ) Proto-Indo-European *-ṓy Ancient Greek -ώ (-ṓ) Ancient Greek ἠχώ (ēkhṓ)bor. Latin ēchō Medieval Latin ēccōbor. Middle English eccho English echo From Middle English eccho, ecco, echo, ekko, from Medieval Latin ēccō, from Latin ēchō, from Ancient Greek ἠχώ (ēkhṓ), from ἠχή (ēkhḗ, “sound”). Possibly from the same Proto-Indo-European root as sough.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.