noun
A formal or legal term for a person who engages in prostitution. In everyday conversation, more common euphemisms or slang may be used.
警察は路上で売春婦を逮捕した。
The police arrested a prostitute on the street.
Compound of 売春 (baishun, 'prostitution') + 婦 (fu, 'woman, lady'). The term is a straightforward Sino-Japanese construction.