Definition of "owl"

Any of various birds of prey of the order Strigiformes that are primarily nocturnal and have forward-looking, binocular vision, limited eye movement, and good hearing.  examples

(by extension) A person seen as having owl-like characteristics, especially appearing wise or serious, or being nocturnally active.  examples

An owl pigeon.  examples

(politics, uncommon) A politician with moderate views that are neither hawkish nor dovish.  examples

Any of various nymphalid butterflies, especially in the genus Caligo, having large eyespots on the wings.  examples

(archaic, intransitive) To smuggle contraband goods.