• (a.) Being out of the house; being, or done, in the open air; outdoor; as, out-of-door exercise. See Out of door, under Out, adv.
Out`-of-door' adjective Being out of the house; being, or done, in the open air; outdoor; as, out-of- door exercise. See Out of door , under Out , adverb « Amongst out-of-door delights.» G. Eliot.