a type of radial arm floodgate used in dams and canal locks to control water flow.

the amount of money made by selling tickets to a concert or a sports event

A physical device, typically electronic, which computes a Boolean logical output (0 or 1) from Boolean input or inputs according to the rules of some logical operator.

A decommissioned aircraft, artillery piece, or tank, displayed near the entrance to an airport or military base.

A structure located at an entrance to a large property, especially a dwelling.

The vagina, especially in reference to sex.

(music) A sequencer effect that breaks up a continuous sound according to a programmed rhythm.

boom barrier

An 18th-century neoclassical monument in Berlin, built after the restoration of order during the early Batavian Revolution, and now a major landmark.

A gate for discharging surplus water from a dam etc.