Not indoors; not in a particular building; absent from one's home or place of work. Generally. Also: (of a racehorse) exercising on the gallops…

On the outside or exterior; externally; esp. out in the open air. Also: not within a limit or boundary; not within some organization, community…

In the open air; outdoors. Now esp. with reference to dining outside.

Out of doors; in or into the open air.