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[soo-per-hahy-wey, soo-per-hahy-wey] /ˈsu pərˌhaɪ weɪ, ˌsu pərˈhaɪˌweɪ/
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.
any very fast route or course.
Origin of superhighway
1925-30; super- + highway Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for superhighway
  • Down a bit on the information superhighway, the road ends.
  • Most companies are better at giving employees access to the information superhighway than at teaching them how to drive.
  • The result is that congestion on the information superhighway at rush hours rivals congestion on conventional highways.
  • Picture the system as a spinning superhighway, divided into myriad narrow lanes.
  • He doesn't see these boxes as part of the unitized superhighway of the networked economy.
  • If this is the information superhighway, we'd better get in the fast lane.
  • Location, value, convenience--the retail superhighway has got all that.
  • It's not even the longest superhighway in the interstate system.
  • Computer literacy is the data superhighway learner's permit.
  • Support learning opportunities through libraries, the information superhighway and emerging technologies.
British Dictionary definitions for superhighway


(mainly US) a fast dual-carriageway road
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for superhighway

1925, from super- + highway.

Online Etymology Dictionary, © 2010 Douglas Harper
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superhighway in Technology
The Free On-line Dictionary of Computing, © Denis Howe 2010
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