coo

definition: the sound made by a pigeon
example:
speech part: noun
synonyms:
definition: to cry softly, as of pigeons
example: The pigeons cooed on my stoop.
speech part: verb
synonyms:
definition: to speak softly or lovingly
example: They were cooing softly as they held the baby .
speech part: verb
synonyms:

How coo is being used?