(historical, also figuratively) On an early naval vessel or pirate ship: to be forced to walk off the end of a gangplank (a plank of wood extending outwards from the side of the vessel) and plunge into the ocean and drown, used as a method of killing.

(idiomatic) To patrol on the job, especially as a police officer or guard.

To walk with no real planned destination, but to just walk, to meander "around".

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

(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.

(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.

(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.

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

(travel, hotel, hospitality industry) A pre-arranged list of compensation that will be offered to clients whose reserved room is not available at time of check-in.

plural of walk policy