Search Dictionary
Definition of coo

coo

/kuː/
coo

Plural:coos
•
Past Simple:cooed
•
Past Participle:cooed
•
Present Participle:cooing
JUMP TO:

coo Lexical Profile

coo Game Scores & Validity

• verb

1

To speak in a very soft, gentle, or fondly affectionate voice (often to a baby, pet, or romantic partner).

Example

"Relatives gathered around the crib to coo over the newborn baby."


2

To make a soft, low, murmuring sound (characteristic of doves or pigeons).

Example

"Pigeons cooed softly on the stone windowsill as the morning sun rose."

Synonyms
View all synonyms for coo
Antonyms
View all antonyms for coo

• noun

1

A soft, murmuring sound made by a dove or pigeon, or a similar gentle vocalization made by a baby or an affectionate person.

Example

"The gentle coo of a mourning dove echoed through the quiet orchard at dawn."

Synonyms
View all synonyms for coo
Antonyms
View all antonyms for coo

• interjection

1

British An exclamation used in informal speech to express surprise, disbelief, or mild astonishment.

Example

"Coo, look at the size of that marrow in the garden!"

Synonyms
View all synonyms for coo

Word Nuance & Usage

Do not confuse with the homophone 'coup' (as in coup d'état or a clever stroke of success), which is spelled with a silent 'p'.

• Rhymes for coo

Word Origin & Etymology

First recorded in the late 17th century, 'coo' is of imitative (onomatopoeic) origin, directly mimicking the soft, guttural call of doves and pigeons.

Cite this Entry


Wordmom. (2026). Definition of Coo. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/coo
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Dictionary & Reference
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.