This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Adverb means an adjective that describes not the noun, but the verb. An example of this is:

My friend Hannah, dances gracefully. 

The gracefully describes the verb which is dance.
Hope this helps =)