IPA: /ˈʌndəˌɡraʊnd/
KK: /ʌndərˈgraʊnd/
adjective
Definition: Relating to something that is hidden, secret, or located below the surface of the earth.
Example: The underground movement worked secretly to oppose the government.
adverb
Definition: In a position or state that is below the surface of the earth, or done in secret.
Example: The group operated underground to avoid detection by the authorities.
noun
Definition: A secret group or movement that works against a government or authority, often in a hidden way. It can also refer to a subway system or a space below the ground.
Example: The underground was crucial in helping people escape from the oppressive regime.
transitive verb
Definition: To place or install something beneath the surface of the ground.
Example: The city is undergrounding the power lines to prevent outages during storms.