A device to turn electric current on and off or direct its flow. • A change or exchange. • A movable section of railroad track which allows the train to be directed down one of two destination tracks; (set of) points. • A long, slender woody plant stem or a flexible, thin rod used as a whip to administer corporal punishment in the United States. • Synonym of rute. • A command line notation allowing specification of optional behavior. • A programming construct that takes different actions depending on the value of an expression. • A networking device connecting multiple wires, allowing them to communicate simultaneously, when possible. Compare to the less efficient hub device that solely duplicates network packets to each wire. • A system of specialized relays, computer hardware, or other equipment which allows the interconnection of a calling party's telephone line with any called party's line. • A mechanism within DNA that activates or deactivates a gene. • One who is willing to take either a submissive or a dominant role in a sexual relationship. • A separate mass or tress of hair, or of some substance (such as jute) made to resemble hair, formerly worn on the head by women. • A variant of crazy eights where one card, such as an ace, reverses the direction of play. • Synonym of Glock switch. • A Glock pistol equipped with a Glock switch. • A play in which the ball (or equivalent) is moved from one side of the playing area to the other. • The process of the currently fronting headmate changing; an instance of this.