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Synonyms

superhighway

American  
[soo-per-hahy-wey, soo-per-hahy-wey] / ˈsu pərˌhaɪ weɪ, ˌsu pərˈhaɪˌweɪ /

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.

  2. any very fast route or course.

superhighway British  
/ ˈsuːpəˌhaɪweɪ /

noun

  1. 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

Etymology

Origin of superhighway

First recorded in 1925–30; super- + highway

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Qatar exports virtually all of its helium via the Strait of Hormuz, the vital commodities superhighway paralyzed by the conflict.

From The Wall Street Journal

Apparently, Mom has forgotten that school is like an information superhighway.

From Literature

With cash use falling, they might be expected to disappear - a roadside relic as we all pull onto the technology superhighway.

From BBC

It's the body's superhighway that carries information from your brain to your major organs.

From BBC

One provider even called them a “superhighway out of homelessness.”

From Los Angeles Times

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.