사인

Etymology 1
From, perhaps by way of.

Noun

 * 1) signature
 * 2) autograph
 * 3) signal
 * 1) autograph
 * 2) signal
 * 1) signal

Etymology 2
From.

Noun

 * 1)  sine

Etymology 3
.

Noun

 * 1) cause of death

Etymology 4
.

Noun

 * 1) private individual