殺し|ころしkoroshi[0]heiban (flat)

1. nounmurder; killing; murderer
   一度いちど殺ころすと、殺ころしが楽たのしくなる。↗

   Once we've killed, we enjoy killing.

• Synonym殺人さつじんWrittenWritten/formal prose for killing a person, standard in law and news reports, as in 「殺人事件」; 「殺し」 is the more colloquial word.
• Synonym殺害さつがいWrittenWritten/formal prose meaning to kill someone, as in 「殺害される」; 「殺し」 is the colloquial everyday term.
• Synonym人殺しひとごろしCasualColloquial: killing a person, or a murderer. 「殺し」 is also often used in the tone of a crime drama.
• Synonym殺生せっしょうWrittenWritten/formal prose for taking life, mostly of animals, in the Buddhist sense; also means cruelty, as in 「殺生な」. 「殺し」 usually refers to killing people.
• Antonym救いすくいNeutralNeutral: rescue, salvation, or comfort. It opposes 「殺し」 only in the contrast between causing death and saving a life.
• Antonym生かしCasualColloquial: letting live, keeping something alive. Not a common standalone noun; it opposes 「殺し」 only in the kill-versus-live contrast.

Everyday speech for killings and murder cases is 「殺し」, as in 「殺しの手口」. Formal prose, law and news use 「殺人」 and 「殺害」; Buddhist killing of animals is 「殺生」; a murderer in casual talk is 「人殺し」. 「生かし」 and 「救い」 serve as opposites.

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

1. ころすこと。
2. 殺人さつじん。また、その事件じけん。