The term 'Turnpike Entrance' refers to the entrance of a highway or toll road. The two crossword solutions for this term are 'RAMP' (4 letters) and 'Onramp' (6 letters). A RAMP is a sloped surface that connects two different levels, such as a road or sidewalk. An onramp is a specific type of RAMP that allows vehicles to enter a highway from a lower-speed road. Onramps are typically marked with signs and arrows to indicate the direction of traffic flow.