Pronunciation: /ˈʌndərˌɡraʊnd/
noun a space beneath the surface of the ground
A1 I took the underground to get to work.
A2 The underground is a convenient way to travel around the city.
B1 The underground system in this city is known for its efficiency.
B2 Many cities have extensive underground networks for public transportation.
C1 The underground is a crucial part of urban infrastructure in many major cities.
C2 Exploring the underground tunnels beneath the city was a thrilling experience.
adjective located, occurring, or taking place beneath the surface of the ground
A1 The underground tunnel was dark and scary.
A2 Many cities have underground transportation systems.
B1 Some people believe that underground societies exist.
B2 Exploring underground caves can be an exciting adventure.
C1 The underground resistance movement played a crucial role in the war.
C2 The underground music scene in the city is thriving with talented artists.
formal The underground tunnel system was built to provide a safe passage for pedestrians.
informal Let's take the underground train to get to the city center quickly.
slang I heard there's a cool underground club downtown.
figurative The artist's work remained largely underground until it was discovered by a mainstream audience.
undergrounded
undergrounds
more underground
most underground
underground
will underground
have undergrounded
is undergrounding
underground
underground
to underground
undergrounding
undergrounded