chin Meaning, Definition & Usage

  1. noun the protruding part of the lower jaw
    mentum.
  2. noun Kamarupan languages spoken in western Burma and Bangladesh and easternmost India
    Kuki; Kuki-Chin.
  3. verb raise oneself while hanging from one's hands until one's chin is level with the support bar
    chin up.

WordNet

Chin noun
Etymology
AS. cin, akin to OS. kin, G kinn, Icel. kinn, cheek, Dan. & Sw. kind, L. gena, Gr. cf. Skr. hanu. *232.
Definitions
  1. The lower extremity of the face below the mouth; the point of the under jaw.
  2. (Zoöl.) The exterior or under surface embraced between the branches of the lower jaw bone, in birds.

Webster 1913