Translation guide
The English word 'assassin' refers to a person who murders an important person for political or religious reasons, or sometimes a hired killer. In Japanese, the most common and direct equivalent is 暗殺者 (ansatsusha), but other terms exist depending on context, such as historical ninja, hired hitmen, or metaphorical use.
A person who kills a prominent figure for political, religious, or ideological reasons.
The standard, neutral term for 'assassin'. Used in news, history, and formal contexts.
彼は大統領の暗殺者として知られている。
He is known as the assassin of the president.
A more literary or historical term for an assassin, often implying a stealthy or hired killer. Used in period dramas or novels.
その武将は刺客に襲われた。
The warlord was attacked by an assassin.
Literally 'killer for hire', this is a colloquial term for a hitman or contract killer. It emphasizes the professional, criminal aspect rather than political motivation.
彼は裏社会で有名な殺し屋だ。
He's a famous hitman in the underworld.
A person paid to murder someone, often in organized crime contexts.
The most common term for a professional hitman. Used in crime fiction and movies.
殺し屋が彼を追っている。
A hitman is after him.
Loanword from English, used specifically for a mafia-style hitman. Common in translated works or when referring to foreign contexts.
Can also be used for a hired killer, but it's broader and more formal. Less specific than 殺し屋.
A covert agent or assassin in feudal Japan, often associated with ninja.
While 'ninja' is a broader term for a spy or covert agent, they are often depicted as assassins in popular culture. Use this when referring to the historical/mythical figure.
忍者は密かに標的を暗殺した。
The ninja secretly assassinated the target.
In historical contexts, 刺客 can refer to a ninja-like assassin. It emphasizes the act of assassination over the spy role.
Used to describe someone who destroys something non-physically, like a character assassin.
Pattern: [target]の暗殺者. Used metaphorically, e.g., 'character assassin' → 人格の暗殺者.
彼は私の人格の暗殺者だ。
He is a character assassin.
Often, metaphorical 'assassin' is better translated with a descriptive phrase like ～を陥れる人 (a person who brings down ~).
彼は私の評判を陥れようとしている。
He is trying to assassinate my reputation.
暗殺者 (ansatsusha) is the formal, general term for an assassin, often politically motivated. 殺し屋 (koroshiya) is a colloquial term for a hitman or contract killer, emphasizing the criminal profession. 刺客 (shikaku) is a literary or historical term, often used for stealthy assassins in period pieces.
新聞は彼を暗殺者と呼んだ。
The newspaper called him an assassin.
殺し屋に依頼するなんて正気か？
Are you crazy, hiring a hitman?
その映画では刺客が主役だ。
In that movie, the assassin is the main character.
In English, 'assassin' can be used loosely (e.g., 'assassin bug'). In Japanese, 暗殺者 is strictly for human killers. For insects or other non-human uses, use specific terms (e.g., サシガメ for assassin bug).
He was a mafia hitman.
彼は金で雇われた暗殺者だ。
He is an assassin hired for money.
Many assassins were active behind the scenes during the Warring States period.