A hollow tube, held in the mouth, or mounted on and opening into a diving mask, used by swimmers for breathing underwater.
A snorkel parka.
A retractable tube fitted in diesel-engine submarines to allow sufficient ventilation that the engines may be used at periscope depth.
To use a snorkel.
A pin or peg used to stop the vent in a cask.
A water tap: a faucet or sillcock.
The plug of a faucet, tap or cock.
To block with a spigot.
To insert (a spigot).