The Meaning of sekkusu [セックス] In Japanese
セックス
セックス
Romaji: sekkusu
Not applicable
What does セックス mean?
Translation and Meaning
sex, sexual intercourse
Definition
セックス means sex, referring to sexual activity, especially sexual intercourse, in casual Japanese. It is a widely understood loanword used in everyday speech, media, dating contexts, and entertainment.
Type
Noun (名詞, loanword)
Stroke Order
Meanings
- Sex as the act of sexual intercourse between partners
- Sex as a topic in media, education, and casual conversation
- In formal or clinical contexts, more precise Japanese terms are preferred
Etymology
loanword from sex, rendered as セックス in Japanese, with the sokuon ッ indicating the double consonant and final ス representing the /s/ sound.
Origin
Borrowed into Japanese during the modern era from English ‘sex’; first attested in postwar media and sex education materials, later common in everyday language.
Usage
Used in casual conversations, entertainment media, advertising, and dating contexts; the verb form セックスする is common for describing the act, while in formal writing prefer 性行為 or 性的活動.
💡 Tips
Mnemonic: the word contains a double K; imagine two people meeting for a quick kiss, emphasized by the two Ks in the middle to recall the geminated consonant
Variations
- 性交 (seikō) — clinical term, romaji seikō
- 性的活動 (seiteki katsudō) — formal term, romaji seiteki katsudō
- セックス (sekkusu) — common loanword in casual speech
Example Phrases
-
彼女と セックス の 話題 も こころの 健康 に 影響する。kanojo to sekkusu no wadai mo kokoro no kenkō ni eikyō suru.Talking about sex with her can also affect mental health.Lista:
- 彼女と (kanojo to) – with her
- セックス (sekkusu) – sex
- の (no) – of
- 話題 (wadai) – topic
- も (mo) – also
- こころの (kokoro no) – mental
- 健康 (kenkō) – health
- に (ni) – to
- 影響する (eikyō suru) – to influence
The word 「セックス」 is a loanword noun meaning ‘sex’; the pattern 「X の話題」 means ‘the topic of X’, and 「も」 adds ‘also’ here.

