a pause, as for breath.

vigorous exercise that causes heavy breathing.

a person who breathes.

a vent in a container or covering, as in a casing for machinery or in a storage tank, to equalize interior and exterior pressure, permit entry of air, escape of fumes, or the like.

a device for providing air from the atmosphere to submerged or otherwise sealed-off persons, internal-combustion engines, etc.

the snorkel breather of a submarine.

noun

intermission , recess , respite , rest , time-out , break , lull , pause