1.To make use of; to convert to one's service; to avail one's self of; to employ; to put a purpose; as, to use a plow; to use a chair; to use time; to use flour for food; to use water for irrigation. "Launcelot Gobbo, use your legs." "Some other means I have which may be used."
2.To behave toward; to act with regard to; to treat; as, to use a beast cruelly. "I will use him well." "How wouldst thou use me now?" "Cato has used me ill."
3.To practice customarily; to make a practice of; as, to use diligence in business. "Use hospitality one to another."
4.To accustom; to habituate; to render familiar by practice; to inure; employed chiefly in the passive participle; as, men used to cold and hunger; soldiers used to hardships and danger. "I am so used in the fire to blow." "Thou with thy compeers, Used to the yoke, draw'st his triumphant wheels."
To use up. (a)To consume or exhaust by using; to leave nothing of; as, to use up the supplies.
(b)To exhaust; to tire out; to leave no capacity of force or use in; to overthrow; as, he was used up by fatigue. (Colloq.)