How to say "casualty" in Japanese

• 傷者しょうしゃCommon
  nounCovers 'casualty' as an injured or wounded person, typical of news reports on accidents and disasters. It points to the injured rather than the dead; for fatalities, 犠牲者 is the natural choice.
• 犠牲者ぎせいしゃCommon
  nounCovers 'casualty' as a victim of an accident, disaster, or crime, especially someone killed. It carries the nuance of 'victim', and is the word to use when casualties may include the dead.
  戦争せんそうは多おおくの犠牲者ぎせいしゃを出だして終結しゅうけつした。↗

  The war ended with many victims.
• 犠牲ぎせいJLPT N1approx.Common
  nounAn abbreviation of 犠牲者; in its own right the word means 'sacrifice'. For 'casualty' it is seldom what you want — use the full form 犠牲者 instead.
  数千人すうせんにんがこの病気びょうきの犠牲ぎせいになった。↗

  Thousands of people became victims of this disease.

For 'casualty' meaning an injured person use 傷者; for victims of an accident or disaster, including the dead, use 犠牲者; 犠牲 is only a shortened form, so prefer the full 犠牲者.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 傷者しょうしゃwounded person
• 犠牲者ぎせいしゃvictim (esp. someone killed)
• 戦闘犠牲者せんとうぎせいしゃcasualty
• 損耗人員そんもうじんいんcasualty
• 人死にひとじにaccidental death
• 犠牲ぎせいvictim (esp. someone killed)