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  • switch-on
    switch-on
    noun
    the act or process of switching on an ignition, light, appliance, etc.
  • switch on
    switch on
    verb
    to cause (a device) to operate by or as if by moving a switch, knob, or lever; turn on
Synonyms

switch-on

American  
[swich-on, -awn] / ˈswɪtʃˌɒn, -ˌɔn /

noun

  1. the act or process of switching on an ignition, light, appliance, etc.


switch on British  

verb

  1. to cause (a device) to operate by or as if by moving a switch, knob, or lever; turn on

  2. informal (tr) to produce (charm, tears, etc) suddenly or automatically

  3. informal (tr) (now slightly dated) to make up-to-date, esp regarding outlook, dress, etc

  4. slang (tr) to arouse emotionally or sexually

  5. slang (intr) to take or become intoxicated by drugs

  6. slang (tr) to introduce (someone) to drugs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

switch on Idioms  
  1. Produce as if operating by a control, as in She switched on the charm as soon as he walked in. [Mid-1900s] Also see switch off.


Etymology

Origin of switch-on

Noun use of verb phrase switch on

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

And up until three years ago, she used to host a party for more than 80 guests on the evening of "Courtenay's switch-on".

From BBC Nov. 26, 2025

She said the switch-on fun would also feature fireworks and refreshments.

From BBC Dec. 7, 2024

The switch-on is cancelled, the start of late-night shopping delayed for a week.

From BBC Nov. 22, 2023

The stage was set in Market Square for the Christmas lights switch-on, an event that draws thousands for music, merriment and a night of festive shopping.

From BBC Nov. 22, 2023

Hundreds of people headed to a North Yorkshire town's seafront to see the light switch-on of its "fishtive" Christmas tree.

From BBC Dec. 4, 2022

How he's still able to keep himself conditioned physically, and switch on mentally to play a five-setter like this, is astonishing - especially given how little tennis he has been playing outside of the Slams.

From BBC Jul. 13, 2026

As he played the instrumental at the end of a session, Madonna said, "Just switch on the microphone, I think I've got an idea," he told Norton.

From BBC Jun. 26, 2026

His approach to business flips the switch on the classic “Field of Dreams” mantra.

From The Wall Street Journal Jun. 18, 2026

“We’re not pulling a bait and switch on you,” Hoover told The Times.

From Los Angeles Times Jun. 4, 2026

As he worked, he inadvertently flipped the switch on when the flashlight was pointing at Luxa and Henry.

From "Gregor the Overlander" by Suzanne Collins

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