turnpike
/ˈtɜː(ɹ)npaɪk/ noun, verb
Forms turnpikes turnpiking turnpiked
- noun A 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.
- noun A gate or bar set across a road to stop carriages, animals, and sometimes people, until a toll is paid.
- noun (Scotland) A winding stairway.
- noun (military) A beam filled with spikes to obstruct passage; a cheval de frise.
- noun (chiefly US) A toll road, especially a toll expressway. In some places the clipped version, pike, is used for roads without tolls.
- noun (mathematical economics) A trajectory on a finite time interval that satisfies an optimality criterion which is associated with a cost function.
- verb (transitive) To form (a road, etc.) in the manner of a turnpike road, or into a rounded form, as the path of a road.
Synonyms
Etymology
From Middle English turnpyke (“spiked barrier across a road”), originally used to block access to such a road until a toll was paid. Equivalent to modern turn + pike (“shaft”).
Webster’s 1913
- noun A frame consisting of two bars crossing each other at right angles and turning on a post or pin, to hinder the passage of beasts, but admitting a person to pass between the arms; a turnstile. See Turnstile, 1.
- noun A gate or bar set across a road to stop carriages, animals, and sometimes people, till toll is paid for keeping the road in repair; a tollgate.
- verb To form, as a road, in the manner of a turnpike road; into a rounded form, as the path of a road. Knowles.
Etymology [Turn + pike.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “turnpike”, CC BY-SA 4.0. Details