Thesaurus
A really fast thesaurus... with lots of synonyms.
go underground (17 synonym found)
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Definition of go underground:
(adj) :
below the ground; below the surface of the Earth; hidden, furtive, secretive
"there is an underground tunnel that takes you across the river."
(v) :
below the ground; secretly
"the tunnel goes underground at this point."
(n) :
an underground railway; (with the) A movement or organisation of people who resist political convention
Definition of go underground:
(adj) :
below the ground; below the surface of the Earth; hidden, furtive, secretive
"there is an underground tunnel that takes you across the river."
(v) :
below the ground; secretly
"the tunnel goes underground at this point."
(n) :
an underground railway; (with the) A movement or organisation of people who resist political convention