tap / space
Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From out + doors (plural of door), probably as a shortening of out of doors. Alternatively, from outdoor (adjective) + -s (adverbial genitive suffix).
out-of-doors, open air, open
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tap / space
Classic usage
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