superhighway - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “superhighway”

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superhighway

noun [C]  us   /ˌsu·pərˈhɑɪˌweɪ/
a wide road with two or more lanes (= parallel divisions) in each direction, usually separated, and on which traffic travels at high speeds
(Definition of superhighway from the Cambridge Academic Content Dictionary © Cambridge University Press)
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