To walk quietly with only the tips of the toes touching the ground.
Standing elevated, on or as if on the tips of one's toes.
Moving carefully, quietly, warily or stealthily, on or as if on the tips of one's toes.
The tip of the toe.
To walk with heavy footsteps.
To tread upon forcibly and repeatedly; to trample.
To cleanse, as clothes, by treading upon them in water.
To travel or wander through.
To hitchhike.
To walk for a long time (usually through difficult terrain).
see Wikipedia:tramp steamer
A long walk, possibly of more than one day, in a scenic or wilderness area.
A disreputable, promiscuous woman; a slut.
Of objects, stray and intrusive and unwanted
A metal plate worn by diggers under the hollow of the foot to save the shoe.
A homeless person; a vagabond.
Any ship which does not have a fixed schedule or published ports of call.