Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun mistress
3 senses of mistress
Sense 1
mistress, kept woman, fancy woman -- (an adulterous woman; a woman who has an ongoing extramarital sexual relationship with a man)
=> woman, adult female -- (an adult female person (as opposed to a man); "the woman kept house while the man hunted")
=> lover -- (a significant other to whom you are not related by marriage)
Sense 2
schoolmarm, schoolma'am, schoolmistress, mistress -- (a woman schoolteacher (especially one regarded as strict))
=> schoolteacher, school teacher -- (a teacher in a school below the college level)
Sense 3
mistress -- (a woman master who directs the work of others)
=> employer -- (a person or firm that employs workers)