coo

1 of 2

verb

cooed; cooing; coos

intransitive verb

1
: to make the low soft cry of a dove or pigeon or a similar sound
The baby cooed quietly in her crib.
2
: to talk fondly, amorously, or appreciatively
The family cooed over the baby pictures.
coo noun

COO

2 of 2

abbreviation

chief operating officer

Examples of coo in a Sentence

Verb The baby cooed quietly in her crib. The baby was making a cooing sound. They all cooed over the baby pictures. “Oh, how sweet,” she cooed.
Recent Examples on the Web
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Verb
Celebrities and academics would troop down to Havana to sit at Castro’s feet, cooing over him. Jay Nordlinger, National Review, 5 Mar. 2025 Lead singer Judson Kolk coos sweet nothings about birds, bees, and Elvis while a matchbox orchestra swells around him. Simon Vozick-Levinson, Rolling Stone, 3 Mar. 2025 William Jefferson, 37, lifts Carter into his arms and sits down at the table while Erica stands holding their cooing 5-month-old Elijah. Willie J. Allen Jr., Orlando Sentinel, 2 Feb. 2025 After months of cooing and babbling at a baby, my adult vocabulary felt distinctly lacking, and my wine terms all but forgotten. Brittani Sonnenberg, Travel + Leisure, 1 Feb. 2025 See All Example Sentences for coo

Word History

Etymology

Verb

imitative

First Known Use

Verb

1577, in the meaning defined at sense 1

Time Traveler
The first known use of coo was in 1577

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Cite this Entry

“Coo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coo. Accessed 15 Mar. 2025.

Kids Definition

coo

verb
1
: to make the low soft cry of a dove or pigeon or a similar sound
2
: to talk fondly or lovingly
coo noun

More from Merriam-Webster on coo

Last Updated: - Updated example sentences
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