stray -- (an animal that has strayed (especially a domestic animal))
Overview of verb stray
The verb stray has 3 senses
roll, wander, swan, stray, tramp, roam, cast, ramble, rove, range, drift, vagabond -- (move about aimlessly or without any destination, often in search of food or employment; "The gypsies roamed the woods"; "roving vagabonds"; "the wandering Jew"; "The cattle roam across the prairie"; "the laborers drift from one town to the next"; "They rolled from town to town")
stray, err, drift -- (wander from a direct course or at random; "The child strayed from the path and her parents lost sight of her"; "don't drift from the set course")
digress, stray, divagate, wander -- (lose clarity or turn aside especially from the main subject of attention or course of argument in writing, thinking, or speaking; "She always digresses when telling a story"; "her mind wanders"; "Don't digress when you give a lecture")
Overview of adj stray
The adj stray has 2 senses
isolated, stray -- (not close together in time; "isolated instances of rebellion"; "a few stray crumbs")
stray -- ((of an animal) having no home or having wandered away from home; "a stray calf"; "a stray dog")