To emit (a vapour, an odour, etc.).
To draw out; to cause to be emitted in vapour.
To pass off in the form of vapour; to emerge.
To expel (something, such as tobacco smoke) from the lungs by action of the diaphragm.
To expel air from the lungs through the nose or mouth by action of the diaphragm, to breathe out.
An exhalation.
To emit (sweat or perspiration) through the skin's pores.
To be evacuated or excreted, or to exude, through the pores of the skin.