To wander about.
To stray from a subject or theme.
To roam or wander through (somewhere).
Of animals (especially sheep): to graze.
To walk; to roam, to wander.
A walk, or a journey taken (especially on foot); the act of taking a walk or journey.
The pastureland over which animals graze; a range, a stray.
The movement of animals while grazing.
A journey to transport something between two places; a run; also, the quantity of items so transported.