Word.ws English Dictionary

coo

/kuː/US/ku/

coo noun: the murmuring sound made by a dove or pigeon. Also the pronunciation spelling of cool.

Noun (1)

coo (plural 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[…].1979, Mei-Fang Cheng, “Progress and Prospects in Ring Dove Research: A Personal View”, in Jay S[eth] Rosenblatt, Robert A[ubrey] Hinde, Colin Beer, Marie-Claire Busnel, editors, Advances in the Study...
  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...2001, Denton L. Roberts, Caddy Roberts-Williams, “What You Need to Know to Be Useful”, in Living as Healer: (Everyone Does Therapy and Should … Know How), Pasadena, Calif.: Hope Publishing House...

Verb

coo (third-person singular simple present coos, present participle cooing, simple past and past participle 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.1763, C[harles] Churchill, The Prophecy of Famine. A Scots Pastoral, 2nd edition, London: Printed for the author, and sold by G. Kearsly, in Ludgate-street, →OCLC, page 15
    • DUET—MAYOR and MAUD. […] Like a Dove I'll coo and bill, pretty Maud, / I will not coo and bill, Mr. Mayor.[1784?], [John] O'Keeffe, Songs, Duets, and Chorusses, in the New Musical Farce of Peeping Tom of Coventry. As Performed at the Theatre Royal, [London?]: [s.n.], →OCLC, page 4
  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.2013, Nicola Cornick, chapter 14, in One Night with the Laird (Harlequin HQN Historical Romance), Don Mills, Ont.: Harlequin HQN, →ISBN

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...1960, P[elham] G[renville] Wodehouse, chapter VII, in Jeeves in the Offing, London: Herbert Jenkins, →OCLC
    • The last track on each of the three sections is a professional course, where you can customise your bike by changing the tyres and the size of chainwheel. Coo!1988 November, Sean Kelly, “Professional BMX Simulator”, in Teresa Maughan, editor, Your Sinclair, number 35 (video game review), London: Sportscene Specialist Press, →ISSN, →OCLC, archived from the...

Noun (2) capitalized: COO

COO (plural 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.2024 August 29, Ashley Rindsberg, “How Wikipedia Launders Regime Propaganda”, in Pirate Wires, archived from the original on 29 Aug 2024
  2. (abbreviation, initialism, international trade) Initialism of country of origin.

Also used as

coo is also the pronunciation spelling of cool.

coo meaning in Arabic and Vietnamese

coo in Arabic

murmuring sound made by a dove or pigeon
قَرْقَرَة qarqara, مُنَاغَاة munāḡāh, هَدِيل hadīl
to make a soft murmuring sound
هَدَلَ hadala

coo in Vietnamese

murmuring sound made by a dove or pigeon
gù

Examples of coo in a sentence

  • An infant has only cries and coos with which to communicate distress and well-being.2001, Denton L. Roberts, Caddy Roberts-Williams, “What You Need to Know to Be Useful”, in Living as Healer: (Everyone Does Therapy and...
  • But oh! ſhall I, Misfortune's bondman, ſpeak / Of pleaſures and delights, where ſorrows ſhriek! / Can plaintive nightingale, or turte-dove, / When vultures tear them, ſing or coo of love?1784, Voltaire, “Memoirs of Voltaire. Written by Himself. Part the Third”, in Memoirs of the Life of Voltaire. Written by Himself....
  • The black-bird and the speckled thrush / Good-morrow gave from brake and brush; / In answer cooed the cushat dove, / Her notes of peace, and rest, and love.1810, Walter Scott, “Canto III. The Gathering.”, in The Lady of the Lake; […], Edinburgh: […] [James Ballantyne and Co.] for John...
  • Then did her soft breath stop and she lay still, her eyes yet open and smiling at the blossoms and the doves who sat upon the window-ledge and lowly cooed and cooed.1896, Frances Hodgson Burnett, “The Doves Sat upon the Window-ledge and Lowly Cooed and Cooed”, in A Lady of Quality: Being a Most Curious...

All 18 example sentences with coo

Forms of coo

Noun
pluralcoos
pluralCOOs
Verb
third-person singular presentcoos
present participlecooing
past participlecooed
pastcooed
Adjective
comparativemore coo
superlativemost coo

Plural of coo: coos

Origin of coo

Onomatopoeic. Compare Dutch koeren.

Imitative.

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

Words formed from coo

Phrases with coo

Words that rhyme with coo

48 more rhymesFewer rhymes

Questions about coo

What does coo mean?
Coo means the murmuring sound made by a dove or pigeon.
What is coo in Arabic?
Coo in Arabic is قَرْقَرَة (qarqara), مُنَاغَاة (munāḡāh), هَدِيل (hadīl). See Coo meaning in Arabic.
How do you use coo in a sentence?
An infant has only cries and coos with which to communicate distress and well-being.
What part of speech is coo?
Coo can be a noun, a verb or an interjection.
How do you pronounce coo?
Coo is pronounced /kuː/ (UK).
What is the plural of coo?
The plural of coo is coos.

Words near coo in the dictionary

  1. conyo boy
  2. conyo girl
  3. conyo girls
  4. conyrine
  5. Conțești
  6. coo
  7. coo-coo
  8. coo-coo clock
  9. coo-coos
  10. coo-ee
  11. coo-eed

Source and license

Adapted from Wiktionary: coo (page history and authors); COO (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-coo.wav.

Cite this entry: “coo.” Word.ws, https://word.ws/coo. Based on Wiktionary, CC BY-SA 4.0.