What is the meaning of Casualty?

Something that happens by chance, especially an unfortunate event; an accident, a disaster.

A person suffering from injuries or who has been killed due to an accident or through an act of violence.

Specifically, a person who has been killed (not only injured) due to an accident or through an act of violence; a fatality.

A person in military service who becomes unavailable for duty, for any reason (notably death, injury, illness, capture, or desertion).

Clipping of casualty department: the accident and emergency department of a hospital providing immediate treatment.

An incidental charge or payment.

Someone or something adversely affected by a decision, event or situation.

Chance nature; randomness.

Douglas Harper (2001–2024) “casualty”, in Online Etymology Dictionary.

Source: wiktionary.org