switch

1 of 2

noun

plural switches
1
: a slender flexible whip, rod, or twig
a riding switch
2
: an act of switching: such as
a
: a blow with a switch
b
: a shift from one to another
c
: a change from the usual
that outfit is a switch
3
: a tuft of long hairs at the end of the tail of an animal (such as a cow) see cow illustration
4
: a device made usually of two movable rails and necessary connections and designed to turn a locomotive or train from one track to another
5
a
: a device for making, breaking, or changing the connections in an electrical circuit
b
: a software icon that is used to select between one of usually two available states
Tap Edit and then toggle the switch next to each supported service to the appropriate setting.Jason Cipriani
Other features … include: … A software switch that lets you change the side button's function to be either volume mute or orientation lock.Matt Rosoff
6
: a heavy strand of hair used in addition to a person's own hair for some coiffures

switch

2 of 2

verb

switched; switching; switches

transitive verb

1
: to strike or beat with or as if with a switch
2
: whisk, lash
a cat switching its tail
3
a(1)
: to turn from one railroad track to another : shunt
(2)
: to move (cars) to different positions on the same track within terminal areas
b
: to make a shift in or exchange of
switch seats
4
a
: to shift to another electrical circuit by means of a switch
b(1)
: to operate an electrical switch so as to turn (a device) on or off
usually used with on or off
(2)
: to change to or from an active state
usually used with on or off
switched on the gene

intransitive verb

1
: to lash from side to side
2
: to make a shift or exchange
switchable adjective
switcher noun

Examples of switch in a Sentence

Noun She flicked a switch and turned the lamp on. He threw the switch to stop the machine. Verb I switched to a new doctor. He kept switching back and forth between topics. She switched back to her original insurance company. We switched over to a different telephone service. Why did you switch jobs?
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Standard circuit breaker switches: These switches, including both single- and double-pole, take up most of the space in the electrical panel. Timothy Dale, Better Homes & Gardens, 4 Mar. 2025 This vegan leather option switches from a couch to a futon that’s only about 6 inches wider than a twin bed for a compact and reliable furniture piece. Clint Davis, People.com, 3 Mar. 2025
Verb
At the kick-off the veteran punk provocateurs’ Australian tour on Saturday (March 1) at Melbourne’s Marvel Stadium, Armstrong once again switched up the lyrics to one of the band’s songs to send a unequivocal, harsh message to the current American administration. Gil Kaufman, Billboard, 5 Mar. 2025 Kirkpatrick switched her party registration to Republican in April 1985. Jay Nordlinger, National Review, 5 Mar. 2025 See All Example Sentences for switch

Word History

Etymology

Noun

perhaps from Middle Dutch swijch twig

First Known Use

Noun

1597, in the meaning defined at sense 1

Verb

circa 1611, in the meaning defined at transitive sense 1

Time Traveler
The first known use of switch was in 1597

Browse Nearby Words

Cite this Entry

“Switch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/switch. Accessed 9 Mar. 2025.

Kids Definition

switch

1 of 2 noun
1
: a slender flexible whip, rod, or twig
2
: an act or an instance of switching
3
: a bunch of long hairs at the end of the tail of an animal (as a cow)
4
: a device made usually of two movable rails and necessary connections and designed to turn a train or streetcar from one track to another
5
: a device for making, breaking, or changing the connections in an electrical circuit

switch

2 of 2 verb
1
: to strike or whip with or as if with a switch
2
: to lash from side to side
3
: to turn, shift, or change by or as if by operating a switch
switch off the light
switched to a different channel
4
: to change one for another : exchange
switch seats
switcher noun

More from Merriam-Webster on switch

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!