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

With indoor cinemas mostly shuttered, drive-in theaters sprang up across the country, and what was the top draw? —Mark Hughes, Forbes.com, 21 June 2025

If finding indoor shelter is not an option: Avoid open fields, hill peaks, or ridge tops. —Nc Weather Bot, Charlotte Observer, 20 June 2025

Market Square also features the supervised FINS Club for Kids, a mix of open-air and indoor event spaces, and, beginning in 2026, The Wager, a sports pub. —Cameron Sperance, Travel + Leisure, 20 June 2025

The family’s true promoter spirit couldn’t be suppressed — soccer, indoor tennis, roller hockey, the Buss family tried it all. —Dan Woike, Los Angeles Times, 20 June 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