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parkway vs. highway

[pahrk-wey] / ˈpɑrkˌweɪ /

noun

  1. a broad thoroughfare with a dividing strip or side strips planted with grass, trees, etc.

  2. Chiefly New York State and Western New England. a strip of grass, sometimes planted with trees or shrubs, between a sidewalk and curb.

[hahy-wey] / ˈhaɪˌweɪ /

noun

  1. a main road, especially one between towns or cities.

    the highway between Los Angeles and Seattle.

    Synonyms:
    interstate, thruway, freeway, expressway
  2. any public road or waterway.

  3. any main or ordinary route, track, or course.