1. a bird's horny projecting jaws; a bill: "a parent bird with a caterpillar in its beak"Similarbillnibmandibleneb
▪ the horny projecting jaw of animals other than birds, for example a turtle or squid.
▪ a person's nose: "she can't wait to stick her beak in"
▪ a projection at the prow of an ancient warship, typically shaped to resemble the head of a bird or other animal, used to pierce the hulls of enemy ships.
Word OriginMiddle English: from Old French bec, from Latin beccus, of Celtic origin.