casualty

中文： 傷亡者、伤亡者、死傷者、死伤者

1. Something that happens by chance, especially an unfortunate event; an accident, a disaster. (countable, uncountable)
2. A person suffering from injuries or who has been killed due to an accident or through an act of violence. (countable, uncountable)
3. Specifically, a person who has been killed (not only injured) due to an accident or through an act of violence; a fatality. (countable, uncountable)
4. A person in military service who becomes unavailable for duty, for any reason (notably death, injury, illness, capture, or desertion). (countable, uncountable)
5. An incidental charge or payment. (countable, uncountable)
6. Someone or something adversely affected by a decision, event or situation. (countable, uncountable)

复数 casualties