[ad-vurb] 
| any member of a class of words that in many languages are distinguished in form, as partly in English by the ending -ly, or by functioning as modifiers of verbs or clauses, and in some languages, as Latin and English, also as modifiers of adjectives or other adverbs or adverbial phrases, as very, well, quickly. Adverbs typically express some relation of place, time, manner, attendant circumstance, degree, cause, inference, result, condition, exception, concession, purpose, or means. |
A part of speech that modifies a verb, an adjective, or another adverb. Adverbs usually answer such questions as “How?” “Where?” “When?” or “To what degree?” The following italicized words are adverbs: “He ran well”; “She ran very well”; “The mayor is highly capable.”
Note: Adverbs are often formed by adding -ly to an adjective, as in truly or deeply.
vɜrb