Mistress
01
情妇, 小三
a woman in a long-term extramarital relationship with a man who provides for her financially
02
女主人, 夫人
a woman master who directs the work of others
03
女教师, 女老师
a woman schoolteacher (especially one regarded as strict)
情妇, 小三
女主人, 夫人
女教师, 女老师
