noun

• (anatomy) The rear part of the foot, where it joins the leg.
  "He [the stag] calls to mind his strength and then his speed, / His winged heels and then his armed head."
• (usually in the plural) A high-heeled shoe.
  "She'd been wearing heels, and fell backward off her right heel and twisted or broke her ankle."
• (firearms) The back, upper part of the stock.
• (music) The thickening of the neck of a stringed instrument where it attaches to the body.

verb

• (transitive) To perform by the use of the heels, as in dancing, running, etc.
  "I cannot sing, Nor heel the high lavolt."
• (transitive) To arm with a gaff, as a cock for fighting.
• (golf, transitive) To hit (the ball) with the heel of the club.
• (American football, transitive) To make (a fair catch) standing with one foot forward, the heel on the ground and the toe up.

verb

• (chiefly nautical) To incline to one side; to tilt.
  "The faster a ship sails, the better she will answer her helm; if she sail very slow, she will scarce steer at all. If she heel much, she won't answer the helm so well."

noun

• (nautical) The act of inclining or canting from a vertical position; a cant.
  "[T]he boat, from a sudden gust of wind, taking a deep heel, I tumbled overboard and down I went […] ."