Subject + 死亡 / 宣布 + 死亡
死亡 (sǐwáng) is a noun and adjective meaning "death" or "dead." It is a formal term used in official, medical, or written contexts. For example, 宣布死亡 means "to declare dead."
这起事故造成了两人死亡。
zhè qǐ shìgù zàochéng le liǎng rén sǐwáng.
This accident caused two deaths.
医生宣布病人已经死亡。
yīshēng xuānbù bìngrén yǐjīng sǐwáng.
The doctor declared the patient dead.
死亡人数目前还在统计中。
sǐwáng rénshù mùqián hái zài tǒngjì zhōng.
The death toll is still being counted.