underground
gb/ˈʌndɚɡɹˌaʊnd/ us/ˈʌndɚɡɹˌaʊnd/
A2
Anglais
~ 4300
Sens
0 sens
Nom
A2
entity
1
a subway train network
A system of trains that run in tunnels under a city.
Schéma d’usage :
to take the underground to [a place]
Erreur fréquente :
Learners may confuse 'underground' (UK English) with 'subway' (US English), which in US can also mean an underground walkway or passage.
Synonymes
subway (Commonly used in American English for the same concept.)
|
metro (Used in many countries, especially in Europe, for an underground train system.)
Antonymes
overground train (A train that runs on tracks above the surface.)
Collocations
take the underground
|underground station
|underground network
|underground map
Thèmes
transportation
|city life
|travel
Exemples
- The underground is the fastest way to get across London.
- She takes the underground to work every morning.
- The city has expanded its underground to reach the suburbs.
- Tourists often find the underground confusing at first.
Exemples pédagogiques
- I go to school by underground.
- The underground is very busy in the morning.
- We took the underground to the museum.
- He works near an underground station.
adjective
B1
property
2
below the earth's surface
Located or happening under the ground.
Synonymes
subterranean (A more formal or technical word for 'underground'.)
Antonymes
aboveground (Situated or occurring on or above the earth's surface.)
Collocations
underground tunnel
|underground parking
|underground cable
Thèmes
geography
|construction
|space
|nature
Exemples
- They built an underground garage for the apartment complex.
- The underground pipes need repair.
- The miners work in underground shafts.
Exemples pédagogiques
- We walked through an underground tunnel.
- There is an underground car park here.
- The shop has an underground storeroom.
Nom
B2
entity
3
secret resistance group
A secret group that works against people in power.
Synonymes
resistance (Often used for organized opposition during wartime or occupation.)
|
clandestine group (Emphasizes secrecy and hidden operations.)
Antonymes
official organization (An open, legally recognized group operating under public authority.)
Collocations
join the underground
|underground movement
|underground network
Thèmes
politics
|history
|law
Exemples
- During the war, he joined the underground to fight the occupation.
- The underground distributed banned newspapers.
- Many members of the underground were arrested by the regime.
Exemples pédagogiques
- She was part of an underground group.
- The underground helped people escape.
- They hid with help from the underground.
adjective
B2
property
4
secret and hidden from public view
Secret and not known by many people, sometimes illegal.
Synonymes
covert (Focuses on being deliberately concealed.)
|
hidden (General term for not visible or known.)
Antonymes
mainstream (Openly accepted by the majority of society.)
Collocations
underground club
|underground art scene
|underground economy
Thèmes
culture
|law
|core_vocabulary
Exemples
- They attended an underground music festival in a warehouse.
- The film became popular through underground screenings.
- There's an underground market for rare books.
Exemples pédagogiques
- He likes underground music.
- They went to an underground party.
- The shop sells underground comics.
Grammaire
Forme canonique
underground
API
GB/ˈʌndɚɡɹˌaʊnd/
US/ˈʌndɚɡɹˌaʊnd/
Syllabes et accentuation
un - der - ground (3 syllabes)
Stress on 1st syllable (un)
Formes du mot
Adjective
- Base: underground
Noun
- Base: underground
- Plural: underground, undergrounds
Famille de mots
Forms
undergrounds
noun
Core family
ground
noun A1
Negative and opposite forms
aboveground
adjective
Expressions
go underground
1/ɡˈoʊ ˈʌndɚɡɹˌaʊnd/
idiom
hide to avoid detection
To hide or work secretly so people cannot find you.
Exemples
- After the scandal, he went underground to avoid reporters.
- The group went underground after being declared illegal.
underground economy
1/ˈʌndɚɡɹˌaʊnd ɪkˈɑnəmi/
fixed phrase
hidden or illegal economic activity
Business activities that are not reported to the government and are often illegal.
Exemples
- The government is trying to crack down on the underground economy.
- Many workers in the underground economy are paid in cash.
underground movement
1/ˈʌndɚɡɹˌaʊnd mˈuvmənt/
fixed phrase
secret opposition group or trend
A secret group that works against those in power or against normal ways of doing things.
Exemples
- The novel was inspired by an underground movement in the 1970s.
- An underground movement is gaining support among young people.