Real Dictionary

peck
verb: If a bird pecks at something or pecks something, it moves its beak forward quickly and bites at it.
verb: If you peck someone on the cheek, you give them a quick, light kiss.

peck in American English 1
to strike with a pointed object, as with a beak
noun: a dry measure of 8 quarts; the fourth part of a bushel, equal to 537.6 cubic inches (8.81 liters)

peck in American English 2
a unit of dry measure, equal to 1⁄4 bushel or 8 dry quarts (8.8096 dry liters or 0.3111 cubic foot)
intransitive verb: to make strokes with the beak or a pointed instrument
transitive verb: to strike or indent with the beak, as a bird does, or with some pointed instrument, esp. with quick, repeated movements

Peck in British English
noun: Gregory. 1916–2003, US film actor; his films include Keys of the Kingdom (1944), The Gunfighter (1950), The Big Country (1958), To Kill a Mockingbird (1963), The Omen (1976), and Other People's Money (1991)

peck in British English 1
noun: a unit of dry measure equal to 8 quarts or one quarter of a bushel

peck in British English 2
noun: a quick light blow, esp from a bird's beak
verb: to strike with the beak or with a pointed instrument