Vagabond
Part of speech: verb
Definition: To roam, as a vagabond
Part of speech: noun
Definition: A person on a trip of indeterminate destination and/or length of time. A bum, a hobo, a tramp, a homeless person.
Drifter
Part of speech: noun
Definition: A person who moves from place to place or job to job.A type of lightweight sail used in light winds like a spinnaker.