To unplug or uncork a container.
To draw out the stops of (an organ).
To remove a stoppage; to clear a blockage.
To replace stale or noxious air with fresh.
To provide with a vent.
To provide manual or mechanical breathing to a patient.
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.