Interior - located inside of or suitable for within a developing; "an inside scene"; "interior decoration"; "an interior bathroom without Home windows" 4. The adverb indoors must be applied to switch the verb continue to be. Indoor is an adjective and could be employed in different ways, for instance in indoor spots. https://ziontixna.blogpayz.com/38074715/indoor-door-mats-can-be-fun-for-anyone