What is the meaning of stray?

noun

• An animal that has strayed (especially a domestic animal. )

verb

• Move about aimlessly or without any destination, often in search of food or employment.
  • usage: "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"
  • synonyms: roll, wander, swan, tramp, roam, cast, ramble, rove, range, drift, vagabond
• Wander from a direct course or at random.
  • usage: "The child strayed from the path and her parents lost sight of her"; "don't drift from the set course"
  • synonyms: err, drift
• Lose clarity or turn aside especially from the main subject of attention or course of argument in writing, thinking, or speaking.
  • usage: "She always digresses when telling a story"; "her mind wanders"; "Don't digress when you give a lecture"
  • synonyms: digress, divagate, wander

adjective

• Not close together in time.
  • usage: "isolated instances of rebellion"; "a few stray crumbs"
  • synonyms: isolated
• Of an animal. ( having no home or having wandered away from home)
  • usage: "a stray calf"; "a stray dog"