I. ˈkü intransitive verb
( cooed ; cooed ; cooing ; coos )
Etymology: imitative
1.
a. : to make the low soft cry of a dove or pigeon
in the coconut palms overhead doves were gloomily cooing — John Dos Passos
cooing like a dove to summon a great peace conference — A.L.Guérard
b. : to make a similar sound sometimes fatuously often in showing affection or pleasure or in seeking to placate
2. : to talk fondly or amorously
such cooing and kissing among us that indeed it is scandalous — John Dryden
II. noun
( -s )
1. : a soft low cry ; typically : the call of a dove or pigeon
the grave coo of a dove — Sidney Lanier
2. : a sound or expression similar to a coo often in indication of or implying affection, fondness, or peaceful intent
III. interjection
Etymology: origin unknown
Britain — used to express surprise, surprised pleasure, or wonder
coo , what an evening that was — Clemence Dane