Super highway

superhighway

[soo-per-hahy-wey, soo-per-hahy-wey]
noun
1.
a highway designed for travel at high speeds, having more than one lane for each direction of traffic, a safety strip dividing the two directions, and cloverleaves to route the traffic on and off the highway. Compare expressway.
2.
any very fast route or course.

Origin:
1925–30; super- + highway

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
superhighway (ˈsuːpəˌhaɪweɪ)
 
n
chiefly (US) a fast dual-carriageway road

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

superhighway
1925, from super- + highway.
Online Etymology Dictionary, © 2010 Douglas Harper
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