tramp

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To walk with a firm, heavy step; trudge.
• intransitive verb To travel on foot; hike.
• intransitive verb To wander about aimlessly.
• intransitive verb To traverse on foot.
• intransitive verb To tread down; trample.
• noun A heavy footfall.
• noun The sound produced by heavy walking or marching.
• noun A walking trip; a hike.
• noun One who travels aimlessly about on foot, doing odd jobs or begging for a living; a vagrant.
• noun A prostitute.
• noun A person regarded as promiscuous.
• noun Nautical A tramp steamer.
• noun A metal plate attached to the sole of a shoe for protection, as when spading ground.

from The Century Dictionary.

• To run (a tramp steamer), taking on merchandise at one port and selling it wherever possible or carrying freight anywhere desired.
• To sail on a tramp steamer.
• To tread under foot; trample.
• To tread (clothes) in water, so as to cleanse or scour them.
• To travel over on foot: as, to tramp a country.
• To walk, especially to walk with heavy step; tread; march; go on foot.
• To go about as a vagrant or vagabond.
• noun The sound made by the feet in walking or marching.
• noun An excursion or journey on foot; a walk.
• noun A plate of iron worn by ditchers, etc., under the hollow of the foot, to save the shoe in pressing the spade into the earth.
• noun An instrument for trimming hedges.
• noun An itinerant mechanic: same as tramper, 2.
• noun An idle vagrant; a homeless vagabond. Also tramper.
• noun A freight-vessel that does not run in any regular line, but takes a cargo wherever the shippers desire: also used attributively, as in tramp steamer. Also called ocean tramp.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To travel; to wander; to stroll.
• transitive verb To tread upon forcibly and repeatedly; to trample.
• transitive verb colloq. To travel or wander through.
• transitive verb Scot. To cleanse, as clothes, by treading upon them in water.
• noun A foot journey or excursion.
• noun A foot traveler; a tramper; often used in a bad sense for a vagrant or wandering vagabond.
• noun The sound of the foot, or of feet, on the earth, as in marching.
• noun A tool for trimming hedges.
• noun A plate of iron worn to protect the sole of the foot, or the shoe, when digging with a spade.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun pejorative A homeless person, a vagabond.
• noun pejorative A disreputable, promiscuous woman; a slut.
• noun Any ship which does not have a fixed schedule or published ports of call.
• noun Australia, New Zealand A long walk, possibly of more than one day, in a scenic or wilderness area.
• noun Short for trampoline, especially a very small one.
• verb To walk with heavy footsteps.
• verb To walk for a long time (usually through difficult terrain).
• verb To hitchhike

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a heavy footfall
• verb move about aimlessly or without any destination, often in search of food or employment
• verb walk heavily and firmly, as when weary, or through mud