simple past tense and past participle of coo

plural of coo-coo

The two-note vocalisation made by the male of the common cuckoo (Cuculus canorus), or imitation of this by a cuckoo clock. / A Barbadian food made from mashed okra and cornmeal.

plural of COO

plural of cooing

The murmuring sound made by a dove or pigeon. / (by extension) An expression of pleasure made by a person.

(transitive, intransitive) To make a soft murmuring sound, as a pigeon. / (intransitive) To speak in an admiring fashion, to be enthusiastic about.

(slang) Cool.

An expression of approval, fright, surprise, etc.

Initialism of chief operating officer. / (international trade) Initialism of country of origin.