(military) A patient whose injuries and/or illness are relatively minor, permitting the patient to walk and not require a litter.

(plural only, in triage) Those casualties whose wounds do not require them to be moved on a stretcher but that can walk to medical treatment.

Any activity performed by an astronaut outside of a space vehicle in space.

Alternative spelling of gorge-walking

An outdoor activity in which one follows the course of a stream (on foot, in the water), negotiating rapids and jumping or climbing waterfalls

(of an apartment etc) Reached by stairs rather than an elevator. / (of a block of apartments) Containing such flats. / (of a service) For which no appointment is necessary.

(intransitive) To stage a walkout or strike. / (intransitive) To leave suddenly, especially as a form of protest. / (intransitive, dated) To go out with; to be romantically involved.

(US) An apartment or block with stairs rather than an elevator. / (aviation) An informal visit to a control tower by a pilot, typically used as part of pilot training.

(informal, transitive) To abandon or desert someone, especially a spouse.

A stunt performed at airshows, particularly in the interwar years, in which a person climbs through the struts of a biplane in flight, or flies strapped in a frame on the top wing of the aircraft