Definition of bill and coo
- A young couple sat together in the corner, billing and cooing.
: the jaws of a bird together with their horny covering
: a mouthpart (such as the beak of a turtle) that resembles a bird's bill
: to touch and rub bill to bill (see 1bill 1)
: to caress affectionately
: a weapon in use up to the 18th century that consists of a long staff ending in a hook-shaped blade
: an itemized list or a statement of particulars (such as a list of materials or of members of a ship's crew)
: a written document or note
: a formal petition
: to make the low soft cry of a dove or pigeon or a similar sound
: to talk fondly, amorously, or appreciatively
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