Thesaurus: underground

Related headwords

Definitions

1. n. The place or space beneath the surface of the ground; subterranean space.
2. a. Being below the surface of the ground; as, an underground story or apartment.
3. a. Done or occurring out of sight; secret.
4. adv. Beneath the surface of the earth.
5. adj. under the level of the ground
6. adj. conducted with or marked by hidden aims or methods
7. n. a secret group organized to overthrow a government or occupation force
8. n. an electric railway operating below the surface of the ground (usually in a city)
9. adv. in or into hiding or secret operation
10. adv. beneath the surface of the earth
11. The place or space beneath the surface of the ground; subterranean space. A spirit raised from depth of underground. Shak. 1. Being below the surface of the ground; as, an underground story or apartment. 2. Done or occurring out of sight; secret. [Colloq.] Underground railroad or railway. See under Railroad. Beneath the surface of the earth.
12. The place or space beneath the surface of the ground;subterranean space.A spirit raised from depth of underground. Shak.