The difference between Subway and Underground

When used as nouns, subway means an underground railway, especially for mass transit of people in urban areas, whereas underground means an underground railway.

When used as verbs, subway means to travel by underground railway, whereas underground means to route electricity distribution cables underground.


Underground is also adverb with the meaning: below the ground.

Underground is also adjective with the meaning: below the ground.

check bellow for the other definitions of Subway and Underground

  1. Subway as a noun (North America, Scotland):

    An underground railway, especially for mass transit of people in urban areas.

  2. Subway as a noun (US):

    A rapid transit system, regardless of the elevation of its right of way.

  3. Subway as a noun (British):

    An underground walkway, tunnel for pedestrians (called pedestrian underpass in US).

  4. Subway as a noun:

    An underground route for pipes, sewers, etc.

  1. Subway as a verb (intransitive, US, informal):

    To travel by underground railway.

  1. Underground as an adjective (not comparable):

    Below the ground; below the surface of the Earth.

    Examples:

    "synonyms: subterranean"

    "There is an underground tunnel that takes you across the river."

  2. Underground as an adjective:

    Hidden, furtive, secretive.

    Examples:

    "synonyms: clandestine hiddhush-hush secret"

    "These criminals operate through an underground network."

  3. Underground as an adjective:

    Of music, art, etc, outside the mainstream.

    Examples:

    "synonyms: unconventional"

  1. Underground as an adverb:

    Below the ground.

    Examples:

    "synonyms: [[below]] [[ground]]"

    "The tunnel goes underground at this point."

  2. Underground as an adverb:

    Secretly.

    Examples:

    "synonyms: clandestinely in secret on the quiet"

  1. Underground as a noun (chiefly, British):

    An underground railway.

  2. Underground as a noun (with "the"):

    A movement or organisation of people who resist political convention.

  3. Underground as a noun (with "the"):

    A movement or organisation of people who resist artistic convention.

  1. Underground as a verb:

    To route electricity distribution cables underground