coo

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coo¹

  • /kuː/ UK
  • /ku/ US

Sounds like coup · Rhymes with -uː

Where it comes from

Onomatopoeic. Compare Dutch koeren.

noun coos

  1. The murmuring sound made by a dove or pigeon. The male [ring dove] will continue nest-coos for 3–4 days until his female partner begins to nest-coo. At that point the male's nest-coo begins to become less frequent[…].
  2. figuratively An expression of pleasure made by a person. An infant has only cries and coos with which to communicate distress and well-being. Adults have many more ways of expressing themselves. However, their expressions of disease and ease can be boiled down to sophisticated cries and coos. A call for help in whatever form is a cry. A sense of well-bein

verb coos · cooing · cooed

  1. ambitransitive To make a soft murmuring sound, similar to a dove or pigeon. No birds, except as birds of paſſage, flew, / No bee was known to hum, no dove to coo.
  2. intransitive To speak in an admiring fashion, to be enthusiastic about. They were too busy cooing over the baby and his parents were too busy cooing over each other.

coo²

  • /kuː/ UK
  • /ku/ US

Sounds like coup · Rhymes with -uː

Where it comes from

Imitative.

interjection

  1. An expression of approval, surprise, etc. I stood outside the door for a space, letting "I dare not" wait upon "I would", as Jeeves tells me cats do in adages, then turned the handle softly, pushed – also softly – and, carrying on into the interior, found myself confronted by a girl in housemaid's costume who put a hand to her throat like s

coo³

  • /kuː/ UK
  • /ku/ US

Sounds like coup · Rhymes with -uː

Where it comes from

Clipping of cool. Compare foo (“fool”).

adjective more coo · most coo

  1. pronunciation spelling, slang Pronunciation spelling of cool

COO⁴

noun COOs

  1. abbreviation, initialism Initialism of chief operating officer Atsme similarly protested when editors sought to portray Trump as racist by referring to a reconstructed and uncorroborated conversation in a book by a former COO at one of Trump’s companies, which attributes to Trump defamatory and racist remarks against black people.
  2. abbreviation, initialism Initialism of country of origin

Thesaurus

Closest in meaning: ee, murmur, roo, director, chief, dah, bbc, huo, koo, kuo, coo-coo, drone, quawk, dook, murmuring, cooee

Translations

Every language

noun murmuring sound made by a dove or pigeon

Españolarrullo
中文咕 gū
Portuguêsarrulho
Françaisroucoulement
DeutschGurren, Girren
Italianocuccu
Ελληνικάγουργούρισμα gourgoúrisma
Русскийворкова́ние vorkovánije
Tiếng Việtgù
العربيةقَرْقَرَة qarqara, مُنَاغَاة munāḡāh, هَدِيل hadīl
עבריתהֶמְיָה hemyá, המהום himhúm

verb to make a soft murmuring sound

Españolarrullar
Portuguêsarrulhar
Françaisroucouler
Deutschgirren, gurren, rucksen, turteln, brabbeln
Italianogrugare, tubare, tortoreggiare
Ελληνικάγουργουρίζω gourgourízo
Русскийворкова́ть vorkovátʹ
العربيةهَدَلَ hadala
עבריתהמהם himhém, המה hamá

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Cite this
MLA

"coo." Wiktionary, via Micwyn, micwyn.com/word/coo. Accessed 6 Nov. 2026.

APA

coo. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/coo

Chicago

"coo." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/coo.

BibTeX
@misc{coo_2026,
  title = {coo},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/coo},
  urldate = {2026-11-06}
}