four-lane

[ fawr-leyn, fohr- ]
/ ˈfɔrˌleɪn, ˈfoʊr- /

adjective

(of a highway) having two lanes for traffic in each direction: a four-lane thruway.

noun

Also four-lan·er [fawr-ley-ner, fohr-] /ˈfɔrˈleɪ nər, ˈfoʊr-/. a four-lane highway.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for four-lane

  • Nothing, of course, to an experienced climber—a foot-wide ledge might as well be a four-lane superhighway.

    The Planet Savers|Marion Zimmer Bradley