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coo1

[koo] /ku/
verb (used without object), cooed, cooing.
1.
to utter or imitate the soft, murmuring sound characteristic of doves.
2.
to murmur or talk fondly or amorously.
verb (used with object), cooed, cooing.
3.
to utter by cooing.
noun
4.
a cooing sound.
Origin of coo1
1660-1670
First recorded in 1660-70; imitative
Related forms
cooer, noun
cooingly, adverb

coo2

[koo] /ku/
interjection, British Slang.
1.
(used to express surprise or amazement.)
Origin
First recorded in 1910-15; origin uncertain

Coo

[kaw-aw] /ˈkɔ ɔ/
noun
1.
Italian name of Kos.

COO

1.
chief operating officer.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for coo
Contemporary Examples
Historical Examples
  • When she is called for—says the story—the puppets in the four corners begin to coo.

    Russian Fairy Tales W. R. S. Ralston
  • Presently there came the “coo” of a wood-pigeon from in front.

    Danger! and Other Stories Arthur Conan Doyle
  • Something between the 'gobble, gobble' of a turkey and the coo of the ring-dove.

    Doctor Luttrell's First Patient

    Rosa Nouchette Carey
  • He did not “coo” as usual, but stared unsmilingly at the ceiling.

    The Cheerful Smugglers Ellis Parker Butler
  • I know all the birds say when they twitter and chirp, caw and coo, gobble and cluck.

    Europa's Fairy Book Joseph Jacobs
British Dictionary definitions for coo

coo

/kuː/
verb coos, cooing, cooed
1.
(intransitive) (of doves, pigeons, etc) to make a characteristic soft throaty call
2.
(transitive) to speak in a soft murmur
3.
(intransitive) to murmur lovingly (esp in the phrase bill and coo)
noun
4.
the sound of cooing
interjection
5.
(Brit, slang) an exclamation of surprise, awe, etc
Derived Forms
cooer, noun
cooingly, adverb

CoO

abbreviation
1.
cost of ownership

COO

abbreviation
1.
chief operating officer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for coo
v.

1660s, echoic of doves; the phrase to bill and coo is first recorded 1816. Related: Cooing. The noun is recorded from 1729.

Online Etymology Dictionary, © 2010 Douglas Harper
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