the world > matter > gas > air > moving air > [noun] > producing blast or current of air > blowing outwards or emission of air (5)
The action of expire, v. in its various senses.
The action of blowing out; an instance of it.
The action of breathing out (air, etc.); emission (of air, wind, etc.); an instance of this. Const. of.
A blowing out or outwards.