underground

adjective

UK /ˈʌndə(r)ˌɡraʊnd/

1
below the surface of the ground
an underground passage/tunnel/cable
Synonyms and related words
Under or below
under
below
lower
2
secret and usually illegal
He had been a member of an underground resistance movement.
Synonyms and related words
Secret, secretive and in secret
secret
secretive
surreptitious
Synonyms and related words
Illegal or dishonest
illegal
unlawful
shady
1. 2a
  not well known by most people and different from what is usual or popular
  Synonyms and related words
  Not known or difficult to know
  secret
  private
  personal

underground

adjective

US /ˈʌndərˌɡraʊnd/

1
below the surface of the ground
an underground passage/tunnel/cable
Synonyms and related words
Under or below
under
below
lower
2
secret and usually illegal
He had been a member of an underground resistance movement.
Synonyms and related words
Secret, secretive and in secret
secret
secretive
surreptitious
Synonyms and related words
Illegal or dishonest
illegal
unlawful
shady
1. 2a
  not well known by most people and different from what is usual or popular
  Synonyms and related words
  Not known or difficult to know
  secret
  private
  personal

underground

adverb

UK /ˌʌndə(r)ˈɡraʊnd/

1
below the surface of the ground
miners who work all day underground
Many species of beetle live underground.
Synonyms and related words
Under or below
under
below
lower
2
in or to a secret place away from the police or other authorities
Left-wing activists were driven underground after the coup.
go underground:
The police became suspicious and he had to go underground.
Synonyms and related words
Secret, secretive and in secret
secret
secretive
surreptitious

underground

adverb

US /ˌʌndərˈɡraʊnd/

1
below the surface of the ground
miners who work all day underground
Many species of beetle live underground.
Synonyms and related words
Under or below
under
below
lower
2
in or to a secret place away from the police or other authorities
Left-wing activists were driven underground after the coup.
go underground:
The police became suspicious and he had to go underground.
Synonyms and related words
Secret, secretive and in secret
secret
secretive
surreptitious

单词	underground
释义	underground adjective UK /ˈʌndə(r)ˌɡraʊnd/ Other entries for this word underground adverb the Underground noun DEFINITIONS2 1 below the surface of the ground an underground passage/tunnel/cable Synonyms and related words Under or below under below lower 2 secret and usually illegal He had been a member of an underground resistance movement. Synonyms and related words Secret, secretive and in secret secret secretive surreptitious Synonyms and related words Illegal or dishonest illegal unlawful shady 2a not well known by most people and different from what is usual or popular Synonyms and related words Not known or difficult to know secret private personal underground adjective US /ˈʌndərˌɡraʊnd/ Other entries for this word underground adverb the Underground noun the Underground Railroad DEFINITIONS2 1 below the surface of the ground an underground passage/tunnel/cable Synonyms and related words Under or below under below lower 2 secret and usually illegal He had been a member of an underground resistance movement. Synonyms and related words Secret, secretive and in secret secret secretive surreptitious Synonyms and related words Illegal or dishonest illegal unlawful shady 2a not well known by most people and different from what is usual or popular Synonyms and related words Not known or difficult to know secret private personal underground adverb UK /ˌʌndə(r)ˈɡraʊnd/ Other entries for this word underground adjective the Underground noun DEFINITIONS2 1 below the surface of the ground miners who work all day underground Many species of beetle live underground. Synonyms and related words Under or below under below lower 2 in or to a secret place away from the police or other authorities Left-wing activists were driven underground after the coup. go underground: The police became suspicious and he had to go underground. Synonyms and related words Secret, secretive and in secret secret secretive surreptitious underground adverb US /ˌʌndərˈɡraʊnd/ Other entries for this word underground adjective the Underground noun the Underground Railroad DEFINITIONS2 1 below the surface of the ground miners who work all day underground Many species of beetle live underground. Synonyms and related words Under or below under below lower 2 in or to a secret place away from the police or other authorities Left-wing activists were driven underground after the coup. go underground: The police became suspicious and he had to go underground. Synonyms and related words Secret, secretive and in secret secret secretive surreptitious
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