Definition of bellwether noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈbelweðə(r)//
; NAmE NAmE//ˈbelweðər//
[usually singular]
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something that is used as a sign of what will happen in the future University campuses are often the bellwether of change. Ohio is seen as a bellwether state in this election.
See the Oxford Advanced American Dictionary entry: bellwether