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coo

1
[ koo ]
/ ku /
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verb (used without object), cooed, coo·ing.
to utter or imitate the soft, murmuring sound characteristic of doves.
to murmur or talk fondly or amorously.
verb (used with object), cooed, coo·ing.
to utter by cooing.
noun
a cooing sound.
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Origin of coo

1
First recorded in 1660–70; imitative

OTHER WORDS FROM coo

cooer, nouncoo·ing·ly, adverb

Other definitions for coo (2 of 4)

coo2
[ koo ]
/ ku /

interjection British Slang.
(used to express surprise or amazement.)

Origin of coo

2
First recorded in 1910–15; origin uncertain

Other definitions for coo (3 of 4)

Coo
[ kaw-aw ]
/ ˈkɔ ɔ /

noun
Italian name of Kos.

Other definitions for coo (4 of 4)

COO

chief operating officer.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use coo in a sentence

British Dictionary definitions for coo (1 of 3)

coo
/ (kuː) /

verb coos, cooing or cooed
(intr) (of doves, pigeons, etc) to make a characteristic soft throaty call
(tr) to speak in a soft murmur
(intr) to murmur lovingly (esp in the phrase bill and coo)
noun
the sound of cooing
interjection
British slang an exclamation of surprise, awe, etc

Derived forms of coo

cooer, nouncooingly, adverb

British Dictionary definitions for coo (2 of 3)

COO

abbreviation for
chief operating officer

British Dictionary definitions for coo (3 of 3)

CoO

abbreviation for
cost of ownership
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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