The meaning of INDOOR is of or relating to the interior of a building. How to use indoor in a sentence.

INDOOR meaning: 1. happening, used, or existing inside a building: 2. happening, used, or existing inside a…. Learn more.

Indoor definition: occurring, used, etc., in a house or building, rather than out of doors.. See examples of INDOOR used in a sentence.

Oct 14, 2025 · Indoor Air Quality impacts everyone, including those who may be more vulnerable - children, the elderly, and people with health conditions like asthma and heart disease. Learn …

indoor in American English (ˈɪnˌdɔr, -ˌdour) adjective occurring, used, etc., in a house or building, rather than out of doors

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