顎先

1. Origins, structure, and basic meaning

• Structure: 顎先 is read as あごさき and is a noun for the foremost tip of the chin projecting from the lower face.
• Basic usage: The tip of the chin trembling from cold appears in 顎先が震える, while drawing the line of a figure's chin delicately appears in 顎先の線を細く描く.

2. Common pitfalls and similar expressions

• The front tip of the chin
  • It identifies the point at the front of the facial outline rather than the whole lower jaw or jaw joint.
• Difference from 顎
  • Unlike the broad word for the jaw or chin area, this term focuses specifically on its front tip.