Translation guide
The English word "intercourse" has two main meanings: sexual intercourse and social interaction. This guide focuses on natural Japanese expressions for each, with emphasis on common usage and register.
To refer to the physical act of sex, in various registers from clinical to slang.
The standard, clinical term for sexual intercourse. Used in formal, medical, or educational contexts.
To refer to communication, dealings, or social exchange between people or groups.
The English phrase 'social intercourse' is somewhat dated. In Japanese, do not directly translate 'intercourse' as 性交 in social contexts. Use 交流 or 交際 instead.
社交的な交流
Social interaction
交流 is broad exchange (cultural, international). 交際 often implies personal relationships or dating. 付き合い is casual socializing or obligatory social duties.
性交は避妊なしで行うべきではない。
Sexual intercourse should not be performed without contraception.
The most common everyday word for sex. Neutral in tone, widely understood.
彼らはセックスについてオープンに話す。
They talk openly about sex.
A slightly more formal term than セックス, often used in legal or educational contexts. Literally 'sexual act'.
性行為の同意は重要です。
Consent for sexual activity is important.
A casual, euphemistic way to say 'have sex'. Derived from the letter 'H'. Common in informal conversation.
昨日彼女とエッチした。
I had sex with my girlfriend yesterday.
A literary or poetic term for sexual union. Rare in modern speech.
二人は深い交わりを持った。
The two had a deep union.
The most common word for social or cultural exchange, interaction. Used for people, groups, nations.
国際交流は重要だ。
International exchange is important.
地域住民との交流を深める。
Deepen interaction with local residents.
Refers to social association, company, or dating relationships. Often used for personal relationships.
彼とは長い交際がある。
I have a long association with him.
交際相手がいる。
I have a romantic partner.
A common, slightly casual term for socializing, keeping company, or obligatory social obligations.
仕事の付き合いで飲みに行く。
Go out drinking as part of work socializing.
Can mean social intercourse or traffic. Somewhat formal and less common for social interaction.
両家の往来が続いている。
The two families continue to visit each other.
近所付き合い
Neighborly relations
Ask someone out
近所付き合い
Neighborly relations