Hypertext Webster Gateway: "adverb"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Adverb \Ad"verb\, n. [L. adverbium; ad + verbum word, verb: cf.
F. adverbe.] (Gram.)
A word used to modify the sense of a verb, participle,
adjective, or other adverb, and usually placed near it; as,
he writes well; paper extremely white.
From WordNet (r) 1.7 (wn)
adverb
n 1: the word class that qualifies verbs or clauses
2: a word that modifies something other than a noun
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