Definition of expire

• v. t. - To breathe out; to emit from the lungs; to throw out from the mouth or nostrils in the process of respiration; -- opposed to inspire.
• v. t. - To give forth insensibly or gently, as a fluid or vapor; to emit in minute particles; to exhale; as, the earth expires a damp vapor; plants expire odors.
• v. t. - To emit; to give out.
• v. t. - To bring to a close; to terminate.
• v. i. - To emit the breath.
• v. i. - To emit the last breath; to breathe out the life; to die; as, to expire calmly; to expire in agony.
• v. i. - To come to an end; to cease; to terminate; to perish; to become extinct; as, the flame expired; his lease expires to-day; the month expired on Saturday.
• v. i. - To burst forth; to fly out with a blast.