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Plug in or plugin?

plug in is an adjective meaning “Designed to be plugged into an electrical power outlet or circuit”; plugin is a noun meaning “Alternative spelling of plug-in”. plug in is written as two words and plugin as one word; they are used differently.

plug inorplugin

What is the difference between plug in and plugin?

plug inplugin
Part of speechadjective, noun, verbnoun
Meaning

Designed to be plugged into an electrical power outlet or circuit

Able to be extended with further components in a modular fashion

Anything that plugs into something

Alternative spelling of plug-in

Examplea plug-in hand drillnone recorded
Formsnoneplugins
Pronunciation/ˈplʌɡ.ɪn//ˈplʌɡ.ɪn/
In writingnot counted (the list counts single words)1.9 times per million words

Sources: plug in and plugin in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Every current meaning of plug in and plugin

plug in

  1. 1

    adjective Designed to be plugged into an electrical power outlet or circuit

    a plug-in hand drill

  2. 2

    noun Anything that plugs into something

  3. 3

    verb To connect (an electrical device) to a plug socket

    Hello, IT. Have you tried turning it off and turning it on again? Ok. Well, are you sure that it's plugged in?

  4. 4

    adjective Able to be extended with further components in a modular fashion

  5. 5

    noun A module or device that interacts with another to add a specific feature or function

  6. 6

    verb To familiarize and integrate (a person) into an organization

  7. 7

    noun An electric vehicle that can be recharged from an external power source

  8. 8

    verb To replace a variable with a number in order to solve an equation

    If an equation has three unknowns, you can plug in two of them to find the third

plugin

  1. 1

    noun Alternative spelling of plug-in

Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.

Which is more common, plug in or plugin?

plug in is a phrase, which the list of single words does not count; plugin 1.9 times per million words.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

The words