adjective Also ride·share.
- of or relating to the sharing of rides or transportation, especially among commuters: The agency was set up to devise a ridesharing program.
- of or relating to a car service with which a person uses a smartphone app to arrange a ride in a usually privately owned vehicle.
noun
- an act or instance of sharing rides or transportation, especially by commuters: A statewide campaign to encourage ridesharing would reduce overcrowding on the highways.
- a car service with which a person can use a smartphone app to arrange a ride in a usually privately owned vehicle.