An unscrupulous and sometimes illegal sales technique, in which an inexpensive product is advertised to attract prospective customers who are then told by sales personnel that the inexpensive product is unavailable or of poor quality and are instead urged to buy a more expensive product.

(networking) A means of directing digitally encoded information in a communication network from its source to its destination, in which messages may be divided into smaller entities called packets, each of which travels independently through the network in paths based on moment to moment routing decisions made by the nodes through which they pass.

(transitive) To turn a switch to the "off" position in order to stop or disable a device. / (idiomatic) To lose interest, and start thinking about something else.

(military) In naval mine warfare, a switch in a mine operated by a projecting spike.

two-element Boolean algebra

(rugby) To change from playing rugby league to rugby union or vice versa

(intransitive, slang) To change, usually in regards to how one feels, thinks, or behaves.

simple past tense and past participle of switch off

simple past tense and past participle of switch up

present participle of switch up