(figuratively) To undertake a precarious course of action.

(idiomatic) A proud or conceited person.

(idiomatic) An occupation, role, social class, or lifestyle.

(baseball) The intentional pitching of four balls (bad pitches), or of a fourth ball, in order to give the batter a walk (for example, so as to avoid the risk of a home run).

(baseball, nonstandard) To intentionally walk; to give a batter an intentional walk.

To take a dog for a walk, so as to give it exercise. / (idiomatic, yo-yo) To perform a trick where the yo-yo rolls on the ground, attached to the string.

(baseball, of a hit) That drives in a run that ends a game.

A prisoner who escapes custody without violence by taking advantage of the opportunity provided by negligent or distracted guards. / A walkout.

Used other than figuratively or idiomatically: A recreational walk in a park. / (idiomatic) Something easy or pleasant.

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