English

Definition of indoor adjective from the Oxford Advanced Learner's Dictionary

  

indoor

 adjective
adjective
BrE BrE//ˈɪndɔː(r)//
 
; NAmE NAmE//ˈɪndɔːr//
 
[only before noun] Parts of a house
 
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located, done or used inside a building an indoor swimming pool indoor games the world indoor 200 metres champion opposite outdoor See related entries: Parts of a house Word Origin early 18th cent. (superseding earlier within-door): from in (as a preposition) + door. Compare with indoors.
See the Oxford Advanced American Dictionary entry: indoor