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

Some people combine methods, using a powder for indoor days and a stick for the beach. — Lauren Jarvis-Gibson, Kansas City Star, 2 July 2026

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

Gradually acclimating an indoor ficus to bright light is key. — Leanne Potts, Better Homes & Gardens, 2 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

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