a car driven by a person whose job is to take passengers where they want to go in exchange for money
small two-wheeled horse-drawn carriage; with two seats and a folding hood
ride in a taxicab
a compartment at the front of a motor vehicle or locomotive where driver sits
hollow out as if making a cave or opening
explore natural caves
a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea
