wanderer

Short definition from Wiktionary

Noun

1. 1
   One who wanders, who travels aimlessly.
2. 2
   Any of various far-migrating nymphalid butterflies of the genus Danaus.
3. 3
   The wandering albatross, Diomedea exulans.
4. 4
   someone connected with any number of soccer clubs known as the Wanderers.