[{"Bold_text": "noun", "List Items": ["a woman who, most often secretly, has an ongoing sexual relationship with, and sometimes is financially supported by, someone who is openly married to, engaged to, or living with another person:If Mr. G thinks his wife doesn’t know he has a mistress, he’s dead wrong—just ask Mrs. G’s private investigator!", "Sometimes Mistress.the dominant sexual partner, when female, in a BDSM relationship of unequal power.", "none Mistress.a term of address in former use and corresponding to Mrs., Miss, or Ms.", "British.a female schoolteacher; schoolmistress .", "Sometimes Mistress.something regarded as feminine that has control or supremacy:Because each enjoyed an era of naval superiority, both Venice and Britain were once known as the Mistress of the Seas.", "Older Use.a woman who has authority, control, or power, especially the female head of a household, institution, or other establishment:I’m sorry, the mistress of the house is not presently available.", "Older Use.a woman employing, or in authority over, servants or attendants:The maid laid out two outfits every morning so that her mistress might choose the one that best suited her mood.", "(especially in historical use) a female owner of enslaved people, in the institution of chattel slavery chattel slavery;a female slaveholder:Her father’s last will and testament made her mistress of his slaves after his death in 1837.", "Older Use.a female owner of a pet or other animal:That horse can only be handled by his mistress and a few of the grooms.", "Older Use.a woman who has the power of controlling or disposing of something at her own pleasure:mistress of a great fortune.", "Obsolete.a woman who is skilled in something; a female master of an occupation or art:She and her sister are both mistresses of the harpsichord.", "Archaic.sweetheart."]}]