pīn

illicit sexual relations

An affair  with a woman  also provides the pronunciation

Components
女 meaning component

  Meaning component

  

woman

并 sound,meaning component

  Sound Meaning component

bìng

  

combine

Evolution

姘 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
姘 Seal script Western Han dynasty (202 BC-9 AD)

Seal script

Western Han dynasty (202 BC-9 AD)
姘 Seal script Western Han dynasty (202 BC-9 AD)

Seal script

Western Han dynasty (202 BC-9 AD)
姘 Regular script Modern

Regular script

Modern
Definitions

 

pīn

illicit sexual relations; to be a mistress or lover

Most common words with 姘
Freq.
Word
Meaning

姘头

lover

to be a mistress or lover

姘妇

mistress

姘居

to cohabit with a lover illicitly

姘夫

paramour