indoor

Everyday

Indoor means happening, used or found inside a building, not outside. tree →

In the lessons

In everyday life, indoor games, indoor plants, indoor pools and indoor sports are used when it is cold or raining. In safety, indoor air can contain fumes, so rooms need fresh air; indoor play rules keep classrooms safe. Opposite: outdoor. Phrases: indoor games, indoor play, an indoor pool, indoor plants, indoor shoes.

Examples

• We had indoor play because it was raining. tree →
• The school has an indoor swimming pool. tree →
• Mum keeps indoor plants on the windowsill. tree →
• Indoor football is played on a smaller pitch. tree →
• Bring your indoor shoes for the gym. tree →
• Cats that live indoors are called indoor cats. tree →
• He had once been an indoor dog, and lay by the fire, and he had been hoarse ever since. tree →

Note

Indoor is an adjective that goes before a noun: «an indoor pool». The adverb is «indoors» (with s): «we played indoors». Same with outdoor/outdoors. Do not write «we stayed indoor».