coo

[ 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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SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?

Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!

Question 1 of 6

Which form is used to state an obligation or duty someone has?

shall

should

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Origin of coo

First recorded in 1660–70; imitative

OTHER WORDS FROM coo

cooer, nouncoo·ing·ly, adverb

Words nearby coo

Conway, conworld, Conwy, cony, Conybeare, coo, cooboo, co-occur, cooch, Cooch Behar, coochie

Other definitions for coo (2 of 4)

coo²

[ koo ]

/ ku /

interjection British Slang.

(used to express surprise or amazement.)

Origin of coo

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

We coo over how cute our cat is and minimize the drudgery of cleaning the litter box.
Why Didn’t Camille Dump Bill Cosby?|Amanda Marcotte|December 17, 2014|DAILY BEAST
And Facebook, under COO and Lean In author Sheryl Sandberg, has attempted to cultivate a reputation for being friendly to parents.
Don’t Be Fooled by Apple and Facebook, Egg Freezing Is Not a Benefit|Samantha Allen|October 17, 2014|DAILY BEAST
While Facebook COO and Lean In guru Sheryl Sandberg urged teachers to “ban bossy,” they embrace the label “boss” wholeheartedly.
Basics Beware: We're All Girl Bosses Now|Rachel Hills|August 28, 2014|DAILY BEAST
They told the public not to believe that the COO meant what he said even though, yes, he said it.
When Campaign Spin Becomes Fact|Stuart Stevens|March 21, 2014|DAILY BEAST

The next day, Chrysler panicked and tried to walk the story back, though they never challenged the accuracy of the COO quote.
When Campaign Spin Becomes Fact|Stuart Stevens|March 21, 2014|DAILY BEAST
He soon sends them flying back to their house on the roof, where they chatter and coo in great excitement.
Seven O'Clock Stories|Robert Gordon Anderson
About half-past three, the doves began to coo, and that made the monkey sit up and listen.
Kari the Elephant|Dhan Gopal Mukerji
I'm the oldest girl at Miss Waring's—locked up there with a lot of little pigeons that coo every time you look at them.
A Hoosier Chronicle|Meredith Nicholson
We were now about one hundred and fifty yards away, and I suddenly leapt to my feet and coo-eed several times.
The Adventures of Louis de Rougemont|Louis de Rougemont
Arrived there, she stopped for breath for a while, and then sent forth a long "Coo-ie."
Fifty-Two Stories For Girls|Various

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

coo

Origin of coo

OTHER WORDS FROM coo

Words nearby coo

Other definitions for coo (2 of 4)

Origin of coo

Other definitions for coo (3 of 4)

Other definitions for coo (4 of 4)

Words related to coo

How to use coo in a sentence

British Dictionary definitions for coo (1 of 3)

Derived forms of coo

British Dictionary definitions for coo (2 of 3)

British Dictionary definitions for coo (3 of 3)