Definition of "Mobile" :

noun: sculpture suspended in midair whose delicately balanced parts can be set in motion by air currents

noun: a port in southwestern Alabama on Mobile Bay

noun: a river in southwestern Alabama; flows into Mobile Bay

adjective: affording change (especially in social status)

"Upwardly mobile."

adjective: capable of changing quickly from one state or condition to another

"A highly mobile face."

adjective: moving or capable of moving readily (especially from place to place)

"A mobile missile system."

adjective: having transportation available

adjective: migratory

"A restless mobile society."