Learn how to say Turnpikes correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word turnpike:
(between the mid-16th and late 19th centuries)
gates or some other barrier set across a road to prevent passage until a toll had been paid
a road on which a turnpike was operated
an obsolete word for turnstile (sense 1)
(US) a motorway for use of which a toll is charged