← BackshareGuessout of door/aʊt əv dɔr/adjectiveLocated, happening, or used outside a building; outdoor.The school held an out-of-door assembly on the football field.The children enjoyed out-of-door games like tag and hide-and-seek.We set up an out-of-door dining area for the summer barbecue.Synonymsopen-airoutdoorAntonymsindoorinside