To fit with earplugs.
A piece of protective gear meant to be inserted in the ear canal to protect the wearer's hearing from loud noises or the intrusion of water.
To provide manual or mechanical breathing to a patient.
To provide with a vent.
To replace stale or noxious air with fresh.
To circulate air through a building, etc.
To expose something to the circulation of fresh air.
To expose something to public examination or discussion.
To shoot with a firearm; to pierce with bullets.