"His friend died from a heart attack."

Translation: 그의 친구가 심장마비로 사망했어요.

[BUis2]

그의 친구가 심장마비로 죽었습니다. This answer is also correct.

[pQpQrOPY]

What is the difference between 사망하다 and 죽다?

[oee16]

죽다 vs 사망하다

• Root

죽다 - pure Korean word

사망하다- word with chinese root.

• Meaning

죽다 - die, die down, fade away

사망하다 - lose one's life, be killed, pass away etc.

• Usage

사망하다 only applies to humans and is considered more formal than 죽다.

죽다 applies to all things. e.g.

추억은 죽었다 - memories died/faded.

불이 죽어요 - the fire dies down.

사망하다 cannot be used in such cases.

[TalvirChri]

Thank u, that's really useful!;))