(idiomatic, slang, somewhat vulgar) To be on the hunt for a (usually sexual) partner.

A person who travels in space for the Chinese space program; a Chinese astronaut.

One of a pair of red lights mounted on the rear of a vehicle, so it can be seen from the rear at night.

(surfing) A deck grip pad at the rear (ie. tail) of a surfboard, for the surfer's back foot to stand on.

(aviation) A type of aircraft that has the horizontal stabilizer situated atop, or near the top of, the vertical stabilizer.

(nautical) A scourge (multi-tail whip) having nine, often knotted, whipcords, formerly used for flogging as naval punishment.

(sumo) A traditional drum, beaten by yobidashi to announce the beginning of a tournament, and at the end of each day

The Chatham Island taiko (Pterodroma magentae).

A hinged board or hatch at the rear of a vehicle that can be lowered for loading and unloading. / (Britain) The hinged rear door of a hatchback. / Either of the downstream gates in a canal lock.

(automotive, intransitive, transitive) To drive dangerously close behind another vehicle.