What is the meaning of Coo?

The murmuring sound made by a dove or pigeon.

An expression of pleasure made by a person.

To make a soft murmuring sound, as a pigeon.

To speak in an admiring fashion, to be enthusiastic about.

Cool.

An expression of approval, fright, surprise, etc.

first-person singular present indicative of coar

dog

hound

cur

wolf dog

first-person singular present indicative of coar

snake

worm

Alternative form of co (to see)

cow

Source: wiktionary.org