A barrier across a toll road or toll bridge that is lifted when the toll is paid(noun)
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Use "tollbar" in a sentence
"Your tollbar is, well, a toolbar below the bookmarks toolbar."
"We recrossed the River Sark, the boundary here between Scotland and England, the famous tollbar through which eloping couples had to hurry before they could reach Gretna Green."
"Near as it is to our own, we were doubtful of the way, and determined to inquire of our opposite neighbor, who keeps the old Brompton tollbar."