Definition, Meaning & Synonyms

underground

Adjective, Noun

/ˌʌndərˈɡraʊnd/

Definition

Located or occurring beneath the surface of the ground.

Examples

The underground subway system allows commuters to travel quickly through the city.
She discovered an underground art scene that few people knew about.
The hikers explored the underground caves filled with stunning rock formations.

Meaning

The term ‘underground’ can refer to things that exist below the earth’s surface or to hidden activities, cultures, or movements that operate out of sight from the mainstream.