- Indoor climbing grades explained. . The meaning of INDOOR is of or relating to the interior of a building. 2 days ago · What is the difference between indoors and indoor? Indoors is an adverb. See examples of INDOOR used in a sentence. Of, situated in, or intended for use in the interior of a building: an indoor pool; indoor paint. It started to rain, so we went indoors. In this sentence, the adverb form should be used to modify the verb phrase wear a jacket, indicating where a jacket is worn. happening, used, or existing inside a…. , in a house or building, rather than out of doors. indoor in American English (ˈɪnˌdɔr, -ˌdour) adjective occurring, used, etc. If something happens indoors, it happens inside a building. If you go indoors, you go into a building. antonym Antonym: outdoor These fireworks are not for indoor use! Aug 26, 2023 · Indoor is an adjective and indoors is an adverb. Indoor definition: occurring, used, etc. Learn more. The children were playing indoors. Indoor is an adjective used in front of a noun. How to use indoor in a sentence. indoor synonyms, indoor pronunciation, indoor translation, English dictionary definition of indoor. Indoor environment, in building science, traditionally includes the study of indoor thermal environment, indoor acoustic environment, indoor light environment, and indoor air quality Aug 31, 2025 · indoor (not comparable) Situated in, or designed to be used in, or carried on within, the interior of a building. Find out how to improve the indoor air you breathe. happening, used, or existing inside a building: 2. INDOOR meaning: 1. adj. , in a house or building, rather than out of doors Oct 1, 2025 · Keeping the air quality high indoors is important for your health, especially during times when you rarely go outside. Define indoor. The meaning of INDOOR is of or relating to the interior of a building. 1.
