concubines
英 [ˈkɒŋkjʊbaɪnz]
美 [ˈkɑnkjəˌbaɪnz]
n. (尤指旧时某些社会里的)妾，姨太太，小老婆
concubine的复数
柯林斯词典
- (旧时的)姘妇，情妇，妾
In former times, aconcubinewas a woman who lived with and had a sexual relationship with a man of higher social rank without being married to him.