roam
verb
[ rəʊm ]
• move about or travel aimlessly or unsystematically, especially over a wide area.
• "tigers once roamed over most of Asia"
• use a mobile phone on another operator's network, typically while abroad.
• "Orange now allows Pay As You Go mobile phone customers to roam in the US"
roam
noun
• an aimless walk.
• "did you get to explore the city or have a roam around Bath?"
Origin:
Middle English: of unknown origin.