mobile in WordNet English dictionary

1. affording change (especially in social status)
   "Britain is not a truly fluid society"; "upwardly mobile"
   fluid  mobile 
   
2. moving or capable of moving readily (especially from place to place)
   "a mobile missile system"; "the tongue is...the most mobile articulator"
   mobile 
   
3. having transportation available
   mobile 
   
4. migratory
   "a restless mobile society"; "the nomadic habits of the Bedouins"; "believed the profession of a peregrine typist would have a happy future"; "wandering tribes"
   mobile  nomadic  peregrine  roving  wandering 
   
5. capable of changing quickly from one state or condition to another
   "a highly mobile face"
   mobile 
   

1. sculpture suspended in midair whose delicately balanced parts can be set in motion by air currents
   mobile