A short tube, usually tapering, forming the vent of a hose or pipe.
The nose of an animal; muzzle.
The part of an earbud that accommodates eartips.
A short outlet or inlet pipe projecting from the end or side of a hollow vessel, as a steam-engine cylinder or a steam boiler.
Any small aperture or vent for air or other fluid.
A pore or opening used (especially by arthropods and some fish) for respiration.
The blowhole of a whale, dolphin or other similar species.