cause of death
Used for the reason or medical/legal cause by which a person or animal died; common in reports, investigations, and official announcements.
The cause of death was announced as heart failure.
The police are investigating the cause of death.
The police are investigating the cause of death in detail.
As a result of the autopsy, the cause of death was determined.
The cause of death is believed to be a heart attack.
がやがや describes a noisy hubbub of voices, while しいん is the mimetic word for total, dead silence.
死因 is the cause of a person's death, while 病因 refers to the cause of a disease, not death itself.
A Sino-Japanese compound: 死 means 'death' and 因 means 'cause' or 'factor'; together they mean 'cause of death.'