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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Polar Bear Passage allows visitors to get remarkably close to polar bears through both indoor and outdoor viewing areas, and the Orangutan Canopy showcases these intelligent primates. Taylor Haught, Kansas City Star, 21 Apr. 2026 The indoor fitness center boasts pilates reformers, Pelotons, and free weights, while the outdoor gym has a rope climb station, obstacle course, and handcrafted equipment. Condé Nast, Condé Nast Traveler, 21 Apr. 2026 In the Quad Cities, there is an indoor facility that charges $30 per person. Joe Kinsey Outkick, FOXNews.com, 21 Apr. 2026 Reporting by Hali Smith • Wahooz Family Fun Zone in Meridian announced a 52,000-square-foot indoor electric go-karting arena with three tracks and 72 karts capable of reaching 40 mph. Chadd Cripe. Produced With Ai Assistance, Idaho Statesman, 21 Apr. 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 28 Apr. 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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