beneath the surface of the ground:
traveling underground by subway.
in concealment or secrecy; not openly:
subversion carried on underground.
existing, situated, operating, or taking place beneath the surface of the ground.
used, or for use, underground.
hidden or secret; not open:
underground political activities.
published or produced by political or social radicals or nonconformists:
an underground newspaper.
an underground movie.
critical of or attacking the established society or system:
of or for nonconformists; unusual:
an underground vegetarian restaurant.
the place or region beneath the surface of the ground.
an underground space or passage.
a secret organization fighting the established government or occupation forces:
He fought in the French underground during the Nazi occupation of France.
(often initial capital letter) a movement or group existing outside the establishment and usually reflecting unorthodox, avant-garde, or radical views.
Chiefly British. a subway system.
verb (used with object)
to place beneath the surface of the ground:
to underground utility lines.
occurring, situated, or used below ground level: an underground tunnel, an underground explosion
secret; hidden: underground activities
going below ground level: the tunnel led underground
into hiding or secrecy: the group was driven underground
a space or region below ground level
a movement dedicated to overthrowing a government or occupation forces, as in the European countries occupied by the German army in World War II
(as modifier): an underground group
the underground, an electric passenger railway operated in underground tunnels US and Canadian equivalent subway
(usually preceded by the)
any avant-garde, experimental, or subversive movement in popular art, films, music, etc
(as modifier): the underground press, underground music
get out from under
verb (used without object) 1. to utter a deep guttural sound of anger or hostility: The dog growled at the mail carrier. 2. to murmur or complain angrily; grumble. 3. to rumble: The thunder growled. 4. Jazz. to use flutter-tonguing in playing a wind instrument. verb (used with object) 5. to express by growling. noun […]
adjective 1. not grown to normal size or height: sickly and undergrown cattle. 2. having an undergrowth: an undergrown thicket tangled with creeping vines. adjective 1. not having the expected height 2. having undergrowth
noun 1. low-lying vegetation or small trees growing beneath larger trees; underbrush. 2. the condition of being undergrown or undersized. 3. short, fine hair underlying longer, outer wool or fur. noun 1. small trees, bushes, ferns, etc, growing beneath taller trees in a wood or forest 2. the condition of being undergrown 3. a growth […]
verb (used with object) 1. to keep safe from harm or danger; protect; watch over: to guard the ruler. 2. to keep under close watch in order to prevent escape, misconduct, etc.: to guard a prisoner. 3. to keep under control or restraint as a matter of caution or prudence: to guard one’s temper. 4. […]