Meaning of ADVERB in English

[noun] [C] - a word which describes or gives more information about a verb, adjective, adverb or phraseIn the following sentences, 'cheerfully', 'spotlessly', 'extremely', 'well', and 'right' are adverbs: She smiled cheerfully.The house was spotlessly clean.He's managing extremely well.The shot was heard right outside the door.See study section: Adjectives and adverbs

Cambridge English vocab.      Кембриджский английский словарь.