セックス

Meaning in English

sex

Illustrated Dictionary

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Dictionary

Word context

What it means

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.

Main 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

How to use it

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.

Variants and close terms

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

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.

Word class

Noun (名詞, loanword)