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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
1660-1670
1660-70; imitative
Related forms
cooer, noun
cooingly, adverb

coo2

[koo] /ku/
interjection, British Slang.
1.
(used to express surprise or amazement.)
Origin
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. 2014.
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Examples from the web for coo
  • The red-faced monkeys frequently utter what researchers have dubbed coo calls to maintain vocal contact with one another.
  • When they leave, he shoots a furtive glance to either side, then moves in to coo for himself.
  • They hold hands, rub knees, sit in the last row of the movies so they can kiss and coo.
  • As the sun rose, their collective coo grew louder and louder as more of them joined the chorus.
  • Children are delighted at how they coo and scoot about unpredictably.
  • Fingers point, voices coo, faces crease in blissful grins.
  • But long before that first burble or coo, babies are learning the elements of language.
  • Within a couple of months, infants may move and coo, bob and blink in concert with anyone who's paying attention to them.
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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Related Abbreviations for coo

COO

chief operating officer
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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