Underground vs. Basement — What's the Difference?

Situated, occurring, or operating below the surface of the earth

A basement or cellar is one or more floors of a building that are completely or partly below the ground floor. It generally is used as a utility space for a building, where such items as the boiler, water heater, breaker panel or fuse box, car park, and air-conditioning system are located; so also are amenities such as the electrical distribution system and cable television distribution point.

Hidden or concealed; clandestine

The floor of a building which is partly or entirely below ground level

Of or relating to an organization involved in secret or illegal activity

The substructure or foundation of a building.

Of or relating to an avant-garde movement or its films, publications, and art, usually privately produced and of special appeal and often concerned with social or artistic experiment.

The lowest habitable story of a building, usually below ground level.

A clandestine, often nationalist, organization fostering or planning hostile activities against, or the overthrow of, a government in power, such as an occupying military government

A complex of undifferentiated igneous and metamorphic rocks underlying sedimentary strata.

Chiefly British A subway system.

(Slang) The last place or lowest level, as in competitive standings.

An avant-garde movement or publication.

Chiefly New England A public toilet, especially one in a school.

Below the surface of the earth.

A floor of a building below ground level.

In secret; stealthily.

(geology) A mass of igneous or metamorphic rock forming the foundation over which a platform of sedimentary rocks is laid.

To situate under the ground

Last place in a sports conference standings.

(not comparable) Below the ground; below the surface of the Earth.

The lowermost portion of a structure partly or wholly below ground level; often used for storage

(figurative) Hidden, furtive, secretive.

The ground floor facade or interior in Renaissance architecture

Outside the mainstream, especially unofficial and hidden from the authorities.

Below the ground.

Secretly.

(geography) Regions beneath the surface of the earth, both natural (eg. caves) and man-made (eg. mines).

Syn of subway: a railway that is under the ground.

A movement or organisation of people who resist political convention.

A movement or organisation of people who resist artistic convention.

To route electricity distribution cables underground.

The place or space beneath the surface of the ground; subterranean space.

A subway or subway system, especially in the United Kingdom.

A secret organization opposed to the prevailing government; as, the French underground during the Nazi occupation.

A group or movement holding unorthodox views in an environment where conventional ideas dominate, as in artistic circles.

Being below the surface of the ground; as, an underground story or apartment.

Done or occurring out of sight; secret.

Beneath the surface of the earth.

A secret group organized to overthrow a government or occupation force

Electric underground railway

Under the level of the ground;

Conducted with or marked by hidden aims or methods;

Used of independent armed resistance forces;

In or into hiding or secret operation;

Beneath the surface of the earth;