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parts of speech:
adjective, adverb, noun
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part of speech: adjective
pronunciation: uhn dr graUnd
definition 1: located, living, or taking place beneath the earth's surface.
The girls found an underground cave.
definition 2: not in public; hidden.
Many Quaker families worked for the Underground Railroad.
part of speech: adverb
pronunciation: uhn dr graUnd [or] uhn dr graUnd
definition: beneath the earth's surface.
Moles live underground.
part of speech: noun
pronunciation: uhn dr graUnd
definition 1: a place or region beneath the earth's surface.
Many coal miners work in the underground.
definition 2: a group of people who work in a secret way against a government or enemy.
Many French people worked for the underground after the Nazis invaded their country.
definition 3: the British word for an underground passenger train or rail system in a large city. Underground has the same meaning as subway.
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