Word: underground
Part of speech: Adverb
Syllables: un
der
ground
Definition: Secretly.
Morphemes:
Affix: under
Language: en
PoS: Adverb
Meaning: In an unconscious state.
Affix: ground
Language: en
PoS: Verb
Meaning: To found; to fix or set, as on a foundation, reason, or principle; to furnish a ground for; to fix firmly.