plug-in

adjective
\ ˈpləg-ˌin How to pronounce plug-in (audio) \

Definition of plug-in

 (Entry 1 of 3)

: designed to be connected to an electric circuit by plugging in a plug-in toy a plug-in circuit board

plug-in

noun

Definition of plug-in (Entry 2 of 3)

1 : something that plugs in
2 : a small piece of software that supplements a larger program (such as a browser)

plug in

verb
plugged in; plugging in; plugs in

Definition of plug in (Entry 3 of 3)

intransitive verb

: to establish an electric circuit by inserting a plug

transitive verb

: to attach or connect to an electric receptacle (such as an outlet)

First Known Use of plug-in

Adjective

1922, in the meaning defined above

Noun

1946, in the meaning defined at sense 1

Verb

1903, in the meaning defined at intransitive sense

Keep scrolling for more

Learn More about plug-in

Time Traveler for plug-in

Time Traveler

The first known use of plug-in was in 1903

See more words from the same year

Statistics for plug-in

Cite this Entry

“Plug-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plug-in. Accessed 18 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for plug-in

plug-in

noun

English Language Learners Definition of plug-in

computers : a small piece of software that adds a feature to a larger program or makes a program work better

More from Merriam-Webster on plug-in

Nglish: Translation of plug-in for Spanish Speakers

Comments on plug-in

What made you want to look up plug-in? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Words Used by Nabokov Quiz

  • image1676440788
  • Choose the best definition or synonym for the word in bold: "There are some eructations that sound like cheers—at least, mine did." Lolita
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

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