To draw air into the lungs, through the nose or mouth by action of the diaphragm.
To draw air or any form of gas (either in a pure form, or mixed with small particles in form of aerosols/smoke -sometimes stemming from a medicament) into the lungs, through the nose or mouth by action of the diaphragm.
To eat very quickly.
An inhalation.
To issue as a breath; exhale.
To exhaust or deprive of breath.
To breathe out; expire.