Definition of GPS abbreviation from the Oxford Advanced American Dictionary

 

GPS

 abbreviation
abbreviation
NAmE//ˌdʒi pi ˈɛs//
 
 
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global positioning system(a system by which signals are sent from satellites to a special device, used to show the position of a person or thing on the surface of the earth very accurately) The drivers all have GPS in their trucks. She switched on the GPS system before she left the airport.
See the Oxford Advanced Learner's Dictionary entry: GPS