indoors
Americanadverb
adverb
Etymology
Origin of indoors
1780–90; indoor + -s 1
Explanation
If you're indoors, you're inside a house or other building. On the hottest, most sweltering summer days, you might decide to stay indoors where it's cool. During a typical school day, elementary school students spend most of their time indoors, reading, writing, doing math, singing songs, and painting pictures. When they leave the indoors and go outside for recess, you can say they're outdoors. Indoors, first used around 1800 (sometimes attributed to George Washington), comes from indoor, a shortened form of within door.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Met Office has urged people to "stay indoors as much as possible", adding: "If you do go out, try not to walk, or shelter, close to buildings and trees."
From BBC ● Oct. 25, 2026
It urged families to keep children indoors and to use "respiratory protection" if going outside.
From Barron's ● Oct. 14, 2026
If you want to use plants to create a memorial space indoors on a balcony or window box, think about nearby seating for two which opens up the opportunity for conversation about your loved one.
From BBC ● Oct. 14, 2026
Abstract Scented volatile chemical products, including surface cleaning agents and botanical disinfectants, are widely used indoors and represent a major source of reactive organic emissions.
From Science Daily ● Sep. 26, 2026
But there is more indoors to a ship than you can picture.
From "Secrets at Sea" by Richard Peck
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