indoor

adjective

in·​door ˈin-ˈdȯr 

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

Components of the firm's strategy for the hall would include around 15 food stalls, a large central bar and flexible indoor event space. —Joseph Flaherty, Arkansas Online, 16 Nov. 2025

The visit included an indoor holiday moment and a street-level appearance in Midtown, both built around the same knee-high silhouette. —Maggie Clancy, Footwear News, 15 Nov. 2025

The Spa The indoor-outdoor spa at The Breakers is vast, with 17 treatment rooms, a nail salon, and a private courtyard. —David Shaftel, Travel + Leisure, 15 Nov. 2025

Fenced gardens, a chicken coop, animal pens, and mature landscaping encourage a true indoor-outdoor lifestyle, just as resort-goers enjoyed more than a century ago. —Sacbee.com, 15 Nov. 2025

Word History

First Known Use

1711, in the meaning defined at sense 1

Phrases Containing indoor

• indoor plumbing

Rhymes for indoor

• abhor
• abor
• adore
• afore
• ardour
• ashore
• backdoor
• before
• bookstore
• candour
• centaur
• claymore

Kids Definition

indoor

adjective

in·​door ˌin-ˌdō(ə)r 

-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