Definition of subterranean
1 : being, lying, or operating under the surface of the earth
2 : existing or working in secret : hidden <a subterranean network of criminals>
subterraneanlyor less commonly
Examples of subterranean in a sentence
<a subterranean bunker that supposedly could withstand even an atomic blast>
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.
Variants of subterranean
subterraneousplay \-nē-əs, -nyəs\
Origin and Etymology of subterranean
Latin subterraneus, from sub- + terra earth — more at thirst
First Known Use: 1603
SUBTERRANEAN Defined for English Language Learners
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
Definition of subterranean for Students
: being, lying, or operating under the surface of the earth <a subterranean lake>
Seen and Heard
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