M-way

Noun

motorway (plural motorways)

1. (Ireland, New-South-Wales, New Zealand, UK) A highway with grade-separated crossings (rather than level crossings) and designed (and only permitted) for high-speed motor-traffic (in Europe motor vehicles with a higher speed limit than 40 km/h) running in two directions on one separate carriageway each.
   • All the R. R.'s of America will have to be furnished with a biking way and a motor way on each side of the rails.1895 October, “Real Estate”, in California Banker's Magazine, page 429

   Synonyms:

   freeway, expressway, highway, autoroute

2. (US) A racetrack venue designated especially for the sport of auto racing.
   • In December, track operators replaced the crushed rock with brick, earning the motorway the nickname, Brickyard.2018, Paul R. Wonning, A Year of Indiana History Stories, volume 1, Greensburg, Indiana: Mossy Feet Books, page 250

   Synonyms:

   speedway