1.
victim; casualty
A person who suffers harm, injury, or death as a result of a disaster, accident, crime, or war. Emphasizes the person as someone who was sacrificed or harmed by circumstances beyond their control.
Common collocations: 犠牲者が出る (casualties occur), 犠牲者を出す (to produce casualties), 犠牲者の冥福を祈る (to pray for the repose of the victims). The base word 犠牲 means "sacrifice" and can be used without ~者: 犠牲になる (to fall victim, to be sacrificed). Related: 被害者 (victim — legal term, emphasizes having suffered damage), 被災者 (disaster victim — specifically those affected by a natural disaster).
Related Words
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被害者 (victim, injured party)
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戦没者 (the war dead)
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負傷者 (injured person)
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死傷者 (casualties)
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死者数 (death toll)
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死亡者数 (number of deaths)