indoor

adjective

in·​door ˈin-ˈdȯr How to pronounce indoor (audio)
Synonyms of indoornext
1
: of or relating to the interior of a building
2
: living, located, or carried on within a building
an indoor sport

Examples of indoor in a Sentence

Recent Examples on the Web
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In wetter climates where residents don't have to water their lawns, indoor use, such as for showers, is more impactful. Jeanine Santucci, USA Today, 5 July 2026 That decrease in crowd size didn't seem to affect business too negatively, as lines for indoor and window counters extended out the door and around the building throughout the morning. Nolan Rogalski, The Providence Journal, 5 July 2026 An indoor match favored Djokovic, but Nadal was matching his level, and twice had multiple break points in the final set that would have left him serving for the match. Charlie Eccleshare, New York Times, 5 July 2026 This 46,000 square-foot outdoor addition creates an unparalleled entertainment complex, blending indoor and alfresco experiences. Brad Japhe, Forbes.com, 5 July 2026 See All Example Sentences for indoor

Word History

First Known Use

1711, in the meaning defined at sense 1

Time Traveler
The first known use of indoor was in 1711

Cite this Entry

“Indoor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/indoor. Accessed 7 Jul. 2026.

Kids Definition

indoor

adjective
in·​door ˌin-ˌdō(ə)r How to pronounce indoor (audio)
-ˌdȯ(ə)r
1
: of or relating to the interior of a building
2
: done, living, used, or belonging within a building
an indoor sport

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