subterranean

play
adjective sub·ter·ra·nean \ˌsəb-tə-ˈrā-nē-ən, -nyən\
variants: or less commonly

subterraneous

play \-nē-əs, -nyəs\

Definition of subterranean

  1. 1 :  being, lying, or operating under the surface of the earth

  2. 2 :  existing or working in secret :  hidden a subterranean network of criminals

subterraneanly

or less commonly

subterraneously

adverb

Examples of subterranean in a Sentence

  1. a subterranean bunker that supposedly could withstand even an atomic blast

Recent Examples of subterranean from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'subterranean'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

A tunnel is a subterranean road or pathway, and a subway is a subterranean railway. The subterranean vaults at Fort Knox hold billions of dollars of gold reserves. Subterranean reservoirs called aquifers are tapped for water; in places where the pressure on the subterranean water is great enough, a hole drilled in the ground will bring it bubbling to the surface.

Origin and Etymology of subterranean

Latin subterraneus, from sub- + terra earth — more at thirst


SUBTERRANEAN Defined for English Language Learners

subterranean

play
adjective

Definition of subterranean for English Language Learners

  • : located or living under the surface of the ground

  • : existing or working in secret


SUBTERRANEAN Defined for Kids

subterranean

play
adjective sub·ter·ra·nean \ˌsəb-tə-ˈrā-nē-ən, -nyən\

Definition of subterranean for Students

  1. :  being, lying, or operating under the surface of the earth a subterranean lake



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