A small hole through which the propellant charge of a cannon or muzzleloading gun is ignited.

A depression in which water collects and where animals come to drink. / (idiomatic) A bar or other local drinking establishment.

Alternative form of sinkhole

plural of sink hole

Alternative spelling of pigeonhole

Alternative spelling of waterhole

(poker, chiefly in the plural) A playing card, dealt face down, that the holder need not reveal until the showdown / (by extension) Something held in reserve, or concealed, until it is useful

Alternative form of bolthole

plural of glory hole

plural of black hole