wicked, mischief, seduce, rape, noisy
姦 centers on morally corrupt or harmful behavior, especially of a sexual or disruptive nature: wickedness, seduction, rape, and noisy mischief. The meanings share a sense of transgressive, often female-associated, wrongdoing.
姦 is composed of three 女 (woman) characters. The historical origin is often explained as representing multiple women together, which came to signify scheming, noise, or illicit sexual behavior, reflecting ancient biases. The exact development is uncertain, but the triple-woman structure is well established.
Three women 女 gathered together, whispering and plotting: their combined presence suggests wicked schemes, seductive mischief, and noisy chaos.
For カン, imagine a can of wicked whispers: the three women open a can of noisy, seductive trouble — can -> カン.
rape; sexual assault
illicit sexual relations (e.g. incest, adultery)
gang rape
fornication
adultery; fornication; illicit intercourse
adultery
treacherous; wicked; perverse
three women make a market
three women make a market; many women, many words; three women gathering creates a racket
noisy; boisterous
to commit adultery; to fornicate; to have illicit sex
villain; scoundrel
South Korea
adulterer; paramour
adulterer and adulteress; adulterous couple
adulteress
wickedness
sex crimes
cunning man; crook
iniquity; wickedness; dishonesty