nounπShareA frame consisting of two bars crossing each other at right angles and turning on a post or pin, to hinder the passage of animals, but admitting a person to pass between the arms; a turnstile."The farmer installed a turnpike at the edge of his field to keep the cows from wandering onto the road, while still allowing people to walk through. "trafficvehiclewayChat with AIVocabulary GamePractice Reading
nounπShareA gate or bar set across a road to stop carriages, animals, and sometimes people, until a toll is paid,"The old turnpike blocked the road until my grandfather paid the small fee to pass. "traffichistoryeconomyvehiclewayChat with AIVocabulary GamePractice Reading
nounπShareA winding stairway."The old castle had a narrow turnpike that led to the king's chambers. "architecturebuildingwayChat with AIVocabulary GamePractice Reading
nounπShareA beam filled with spikes to obstruct passage; a cheval de frise."The soldiers positioned the turnpike across the narrow path, preventing the enemy from advancing. "militaryweaponChat with AIVocabulary GamePractice Reading
nounπShareA toll road, especially a toll expressway."We paid the toll on the turnpike to get to Grandma's house faster. "wayvehicletrafficeconomyChat with AIVocabulary GamePractice Reading
nounπShare(mathematical economics) A trajectory on a finite time interval that satisfies an optimality criterion which is associated with a cost function."Finding the mathematical turnpike for minimizing factory production costs over the next month involves calculating the optimal balance between current output and future investment. "matheconomybusinessChat with AIVocabulary GamePractice Reading
verbπShareTo form (a road, etc.) in the manner of a turnpike road; into a rounded form, as the path of a road."The landscapers turned the dirt path into a smoother, more usable turnpike, making it easier for the children to walk to school. "wayarchitecturebuildingChat with AIVocabulary GamePractice Reading
