To breathe out; to emit from the lungs; to throw out from the mouth or nostrils in the process of respiration; -- opposed to inspire.
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.
To emit; to give out.
To emit the breath.
To burst forth; to fly out with a blast.
expel air; "Exhale when you lift the weight"