verb (used without object), cooed, coo·ing.
verb (used with object), cooed, coo·ing.
Origin of coo1
Examples from the Web for coos
Aside from missing a letter that CEOs have in their title, COOs lack the juice they have.
She has nicknames for all her students—she coos that they are her “ladybug” or “honey pie” or “sexy lady.”A Love Letter to ‘American Idol’ Judge Nicki Minaj|Ramin Setoodeh|March 7, 2013|DAILY BEAST
Critics have noted how Williams coos and whispers in convincing Marilyn fashion.
The scene feels far more Vogue than Newsweek, with lots of “Brilliant, dah-ling” coos of approval.
She coos at them, and well she may for she is crowned with the laurel-wreath of the best up-to-date advertising.The Champagne Standard|Mrs. John Lane
The industry was important at Coos bay at an early day, and vessels constructed there sailed the seas thirty or forty years.American Forest Trees|Henry H. Gibson
His pet name precedes him down the street, the coos come from the shadowed interiors.At Plattsburg|Allen French
Whistles and chirps, coos and caws and croaks, would have grown familiar to him.Irish Fairy Tales|James Stephens
On the mother's back the child sleeps and coos and observes what goes on about it.South and South Central Africa|H. Frances Davidson
verb coos, cooing or cooed
1660s, echoic of doves; the phrase to bill and coo is first recorded 1816. Related: Cooing. The noun is recorded from 1729.