noun

• (obsolete) A word or a motto; a device.
  "1597–1598, Joseph Hall, Virgidemiarum With his big title, an Italian mot"
• (obsolete) A note or brief strain on a bugle.
  "Comrades, mark these three mots — it is the call of the Knight of the Fetterlock"

noun

• (UK, Ireland, slang) A woman; a wife.
  "Come wed, my dear, and let's agree, / Then of the booze-ken you'll be free; / No sneer from cully, mot, or froe / Dare then reproach my Bess for Joe; / For he's the kiddy rum and queer, / That all St. Giles's boys do fear."
• (UK, Ireland, slang) A prostitute.
• (UK, Ireland, slang) A landlady.
  "After some altercation with the "mot" of the "ken" (mistress of the lodging-house) about the cleanliness of a knife or fork, my new acquaintance began to arrange "ground," &c., for the night's work."

noun

• (British) Ministry of Transport test; an annual test of roadworthiness for British cars over three years old.
  "I can’t drive over this week, the car is in for its MOT."
• (British) An aggregate which meets the Ministry of Transport standard as a compact subbase.
  "It will need some MOT at the bottom and then a layer of washed sand."
• (business) management of technology.
• (electronics) microwave oven transformer