noun

• (Canada, US, Philippines) A simple bed, especially one for portable or temporary purposes.
  "There was a flickering of lanterns about the camp that night, and a rumor that brought men out of their cots to the tent doors, a paddling of the naked feet of doolie-bearers and the rush of a galloping horse."
• (UK, Ireland, Commonwealth) A bed for infants or small children, with high, often slatted, often moveable sides.
• (nautical, historical) A wooden bed frame, slung by its corners from a beam, in which officers slept before the introduction of bunks.

noun

• (archaic) A cottage or small homestead.
  "the sheltered cot, the cultivated farm"

noun

• (obsolete) A man who does household work normally associated with women.
  "You know, that being an old bachelor, and somewhat of an epicure, he is at home, what the vulgar call a cot; and has laid down his spontoon for the tasting spoon, converted his sword into a carving knife, and his sash into a jelly bag."

noun

• (African-American Vernacular, dated) vulva; vagina.