kept woman

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌkept ˈwoman noun [countable]  old-fashionedSY a woman who is given a place to live, money, and clothes by a man who visits her for sex – often used humorously 被包养的情妇，姘妇〔常为幽默用法〕 SYN mistress

Examples from the Corpus

kept woman• Which same meant, thought Markby, that he was saying Harriet wasn't a kept woman.

ˌkept ˈwoman nounChineseSyllable  

place Corpus who is given a woman a

kept woman
ˌkept ˈwoman noun [countable]
old-fashioned a woman who is given a place to live, money, and clothes by a man who visits her for sex – often used humorously
   SYN  mistress

kept womanBrE /ˌkept ˈwʊmən/ 🔊NAmE /ˌkept ˈwʊmən/ 🔊 noun (old-fashioned, usually humorous) a woman who is given money and a home by a man who visits her regularly to have sex （被包养的）姘妇，情妇