How to say "cum" in Japanese

• 兼けんCommon
  conjunctionA common word that covers only the 'and at the same time' sense of 'cum', as in bedroom-cum-study or chauffeur and secretary. It has nothing to do with the bodily senses.
  この雑誌ざっしの編集者へんしゅうしゃ兼けん出版社しゅっぱんしゃが一部いちぶの読者どくしゃから批判ひはんされた。↗

  The editor and publisher of this magazine was criticized by some readers.
• スペルマ
  nounA colloquial, less common loanword covering the noun sense of 'cum': sperm or semen. It has no verb use, so it cannot translate 'to cum' as an action.
• サーメン
  nounA colloquial, less common loanword with the same range as スペルマ: sperm, semen, 'cum' as a noun. Nothing in its meaning sets it apart from スペルマ.
• 射精るでる
  ichidan verb, intransitive verbA less common, vulgar verb meaning 'to cum', i.e. to ejaculate. It names the act rather than the fluid, and its vulgarity confines it to crude, explicit contexts.
• 愛液あいえき
  nounA colloquial, less common noun for semen; it covers the same noun sense of 'cum' as スペルマ and サーメン, though it is a kanji word rather than a loanword.

For 'cum' meaning 'and at the same time', as in bedroom-cum-study, use 兼; for the noun sense, 「スペルマ」, 「サーメン」 or 愛液, all colloquial and less common; for the verb, the vulgar 「射精る」.

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

• 兼けんand (concurrently; e.g. chauffeur and secretary)
• スペルマsperm
• サーメンsperm
• 射精るでるto ejaculate
• 愛液あいえきsemen
• いくto have an orgasm
• 出るでるto ejaculate