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

The new Vista Point complex will add 193 independent living units, 72 assisted living residences, an indoor pool, performing arts auditorium, art studio and more, and ultimately will boost Fairview’s overall population to nearly 600. — Don Stacom, Hartford Courant, 10 Aug. 2026

Situated in the Fatih district, in the neighborhood of Kapalıçarşı, Istanbul’s beautifully restored Grand Bazaar—founded in 1461—is one of the world’s oldest and largest indoor markets, encompassing more than 60 covered streets and some 4,000 shops. — Cnt Editors, Condé Nast Traveler, 9 Aug. 2026

Both sets of my grandparents live in South Florida, and between the humid heat and blasting indoor AC, a good cardigan is an everyday and travel staple for them both. — Alexandra Domrongchai, Travel + Leisure, 8 Aug. 2026

Its 21,000-square-foot Martchek Family Strength and Conditioning Center includes weight and cardio equipment, indoor and outdoor turf, sports-science space, hydrotherapy and rehabilitation pools. — Gabby Sartori, USA Today, 8 Aug. 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