A vagabond is a tramp or someone who moves around because they do not have a home. The boy that Mr. Trabb calls a vagabond was once very close to Pip in terms of lifestyle and ease of living, but now that Pip has property, he and the boy are nearly polar opposites. Dickens uses contrasts between two characters many times throughout the novel to enhance their characterizations.
Works Cited: "Vagabond." Answer.com. Houghton Mifflin Company. 14 Dec. 2008