Physical acts between people that aim at sexual arousal and satisfaction, especially sexual intercourse.
example
Offene Kommunikation über Wünsche und Grenzen ist wichtig für guten Sex.
Open communication about desires and boundaries is important for good sex.
Usage tips
Origin
The word 'der Sex' (sex) is a direct loanword from English. It is used and understood in German in the same way.
EXAMPLE
Der Film enthält Szenen mit Gewalt und Sex.
The film contains scenes with violence and sex.
Typical collocation
The most common and neutral phrase for talking about the act is the fixed collocation 'Sex haben' (to have sex). It is often expanded with the preposition 'mit' (with).
EXAMPLE
Sie haben zum ersten Mal Sex miteinander gehabt.
They had sex with each other for the first time.
Use without an article
In the typical collocation 'Sex haben' (to have sex), the noun 'Sex' is treated like a mass noun and stands without an article. You do not say 'einen Sex haben'.
EXAMPLE
Er wollte mit ihr Sex haben.
He wanted to have sex with her.
Compare with
near_synonym · confusable
Sex vs Liebe
love
'die Liebe' and 'der Sex' can both be part of a close relationship between people, but they do not mean the same thing. 'Liebe' mainly means a deep feeling of closeness, affection, and connection. In the expression 'Liebe machen' (to make love), it can also refer to sexual intercourse, but the expression sounds more tender and often emphasizes emotional closeness. 'Sex' refers more directly to physical sexual acts. Learners may confuse the words because both occur in romantic relationships. In practice: use 'Liebe' for feelings, and 'Sex' for the physical act.
Sex
In ihrer Beziehung sprechen sie offen über Sex und ihre Wünsche.
In their relationship, they talk openly about sex and their desires.
Liebe
Nach vielen Jahren ist die Liebe zwischen Maria und Paul immer noch stark.
After many years, the love between Maria and Paul is still strong.