The term 'cloverleaf part' refers to a type of highway interchange, which is a junction between two or more roads. The cloverleaf part consists of two parts: an EXIT RAMP (4 letters: EXIT) and an onramp (6 letters: ONRAMP). The EXIT RAMP is a curved road that allows vehicles to leave the highway, while the onramp is a curved road that allows vehicles to enter the highway. The cloverleaf part also includes a RAMP (4 letters: RAMP) that connects the EXIT RAMP and the onramp. This type of highway interchange is designed to reduce traffic congestion and improve safety.