Trunk road and Turnpike

Trunk road noun - A highway.

Turnpike and trunk road are semantically related in highway topic. In some cases you can use "Turnpike" instead a noun phrase "Trunk road", when it comes to topics like freeway.

Turnpike noun - A passage cleared for public vehicular travel.

Trunk road and turnpike are semantically related in highway topic. Sometimes you can use "Trunk road" instead a noun "Turnpike", if it concerns topics such as freeway.