- noun the bottom part of the face, beneath the mouth
- verb to hit someone (by implication on the face or head, although not necessarily on the chin). An old working-class term still heard in or around bar brawls, playground fights, etc.
- verb to perform chins
Origin & History of “chin”
Chin has relatives throughout the Germanic languages (German has kinn, for instance, and Dutch kin) and is also represented in words for ‘lower jaw’, ‘mouth’, ‘cheek’, etc in other Indo-European languages (Greek gnáthos ‘jaw’, e.g., which gave English prognathous ‘having projecting jaws’). All go back to a prehistoric Indo-European source *genw-.