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switch - definition and synonyms


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noun [countable] switch pronunciation in British English /swɪtʃ/
Word Forms
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  1. 1
    something such as a button or a key that controls the electrical supply to a light, piece of equipment, machine etc
    a light switch
    an on-off switch
    flick/flip a switch (=push it up or down): He flicked the intercom switch to his secretary.
    press a switch: Lily pressed the switch and plunged the room into darkness.
  2. 2
    a change from one thing to another
    a major policy switch by Washington
    a switch (from something) to something: He said the switch from electric to solar power would be made soon.
    A switch to a high-fibre diet will help your digestion.
    make the switch (from something) to something: Last year he made the switch to boxing from kickboxing.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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