<p><strong>Verb (used with object)</strong></p><ul><li>to strike or indent with the beak, as a bird does, or with some pointed instrument, especially with quick, repeated movements.</li><li>to make (a hole, puncture, etc.) by such strokes; pierce.</li><li>to take (food) bit by bit, with or as with the beak.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to make strokes with the beak or a pointed instrument.</li></ul><p><strong>Noun</strong></p><ul><li>a quick stroke, as in pecking.</li><li>a hole or mark made by or as by pecking.</li><li>a quick, almost impersonal kiss: a peck on the cheek.</li><li>(in timber) incipient decay from fungi, occurring in isolated spots.</li></ul><p><strong>Slang</strong></p><ul><li>food; grub.</li></ul><p><strong>Verb phrase</strong></p><ul><li>to nibble indifferently or unenthusiastically at (food).</li><li>to nag or carp at: Stop pecking at me, I'm doing the best I can.</li></ul>