say it: OWT-dawr
outdoor is an adjective meaning "located, suited for, or taking place in the open air". It carries 2 recorded senses.
located, suited for, or taking place in the open air
“outdoor clothes”
“badminton and other outdoor games”
“a beautiful outdoor setting for the wedding”
pertaining to or concerning the outdoors or outdoor activities
“outdoor education is the area of teacher training concerned with training for outdoor activities”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for outdoor come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.