Practice

v. i.
  1. To perform certain acts frequently or customarily, either for instruction, profit, or amusement; as, to practice with the broadsword or with the rifle; to practice on the piano.
  2. To learn by practice; to form a habit.
  3. To try artifices or stratagems.
  4. To apply theoretical science or knowledge, esp. by way of experiment; to exercise or pursue an employment or profession, esp. that of medicine or of law.