사인이 · 사인을
cause of death
Example
경찰은 아직 정확한 사인을 밝히지 못했습니다.
The police have not yet determined the exact cause of death.
Word parts
사 death+인 cause
Literally 'death cause'.
Good to know
Homonym warning: 사인 also means 'signature' (from English 'sign') and 'signal'; context tells you which.
Related words