adverbs is a form of:

Adverb



noun
1.
(A word added to modify a verb. adjective, or other adverb) កិរិយាសព្ទវិសេសន៍, គុណកិរិយា
ENGLISH MEANING
noun
1.
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.