door A1

/do(ː)ɹ/ A flat barrier on a hinge that you open and close to enter or leave a room, building, or vehicle.

doorsill C2+

/ˈdɔrsɪl/ the horizontal threshold at the bottom of a doorway

withoutdoors C2+

/wɪˌðaʊtˈdɔrz/ out of doors; outside (archaic)