性交 (xìng jiāo) — (noun) sexual intercourse; (verb) to have sex

Definition

A formal, clinical/medical term for sexual intercourse — used in writing, academic, and medical contexts. More neutral and less colloquial than everyday phrases like 做爱 or 同房.

noun
sexual intercourse
verb
to have sex

Examples

  • 性交
    xìng jiāo Xíng wéi zài dà duō shù wén huà zhōng dū bèi shì wéi sī mì huà tí.
    Sexual intercourse is considered a private topic in most cultures.
  • 性交
    Yī xué shàng rèn wéi ān quán de xìng jiāo xū yào cǎi qǔ bǎo hù cuò shī.
    Medically safe sexual intercourse requires taking protective measures.
  • 性交
    Tā men cóng wèi fā shēng guò xìng jiāo guān xì.
    They have never had a sexual relationship.

Origin

Compound word
构词法gòucífǎ
偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

jiāointercourse

性 means sex and 交 means intercourse, so it names sexual intercourse.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
Written in full asxīnheart
Sound part声符shēngfú
shēngxìng
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

性 is built from 忄 (the heart) and 生 (a sound clue). The heart part connects the word to a person's inner nature or quality.

Open 性 →

A drawing of the thing itself, worn down over three thousand years into a few strokes.

交 originally drew a human with crossed legs. In the modern shape, the upper part resembles a standing person.

Open 交 →

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