The Collaborative International Dictionary of English v.0.48:

Roam \Roam\, n.
   The act of roaming; a wandering; a ramble; as, he began his
   roam o'er hill and dale. --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Roam \Roam\ (r[=o]m), v. i. [imp. & p. p. Roamed (r[=o]md); p.
   pr. & vb. n. Roaming.] [OE. romen, ramen; cf. AS.
   [=a]r[=ae]man to raise, rise, D. ramen to hit, plan, aim, OS.
   r[=o]m[=o]n to strive after, OHG. r[=a]men. But the word was
   probably influenced by Rome; cf. OF. romier a pilgrim,
   originally, a pilgrim going to Rome, It. romeo, Sp. romero.
   Cf. Ramble.]
   To go from place to place without any certain purpose or
   direction; to rove; to wander.
   [1913 Webster]

         He roameth to the carpenter's house.     --Chaucer.
   [1913 Webster]

         Daphne roaming through a thorny wood.    --Shak.
   [1913 Webster]

   Syn: To wander; rove; range; stroll; ramble.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Roam \Roam\, v. t.
   To range or wander over.
   [1913 Webster]

         And now wild beasts came forth the woods to roam.
                                                  --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

roam
    v 1: move about aimlessly or without any destination, often in
         search of food or employment; "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"
         [syn: roll, wander, swan, stray, tramp, roam,
         cast, ramble, rove, range, drift, vagabond]

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "roam":
   amble, bat, bat around, bum, circumambulate, count ties, cruise,
   dally, dawdle, divagate, drift, flit, gad, gad about, gallivant,
   go about, go the rounds, hit the road, hit the trail, hobo, jaunt,
   knock about, knock around, meander, mooch, mosey, nomadize,
   perambulate, peregrinate, pererrate, prowl, ramble, range, rove,
   run about, saunter, straggle, stray, stroll, swan, traipse, tramp,
   travel, vagabond, vagabondize, voyage, walk, walk the tracks,
   wander, wayfare