mistress has definitions from the fields of work,sexuality,education
1
[ noun ] (sexuality) an adulterous woman; a woman who has an ongoing extramarital sexual relationship with a man

Used in print

(Howard Nemerov, "Themes and Methods: The Early...)

The monk Savonarola , brought over from the Renaissance and placed against the background of Munich at the turn_of_the_century , protests against the luxurious works displayed in the art shop of M._Bluthenzweig ; in particular against a Madonna portrayed in a voluptuous style and modeled , according_to gossip , upon the painter 's mistress .

(Stephen Longstreet, Eagles Where I Walk....)

Or was it her own first ball as mistress of this big house , a Van_Rensselaer bride from way upstate near Albany , from Rensselaerwyck .

(Guy Bolton, The Olympians....)

When Claire returned to Bishopsgate she longed to tell them she had become Byron 's mistress .

2
[ noun ] (work,education) a woman schoolteacher (especially one regarded as strict)

Related terms

schoolteacher

3
[ noun ] (work) a woman master who directs the work of others

Related terms

employer chatelaine

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