What is the definition of an adverb?
The definition of an adverb is words and phrases that describe
or limit the meaning of a verb, an adjective,or a whole sentence.
Adverbs answer the questions when, where, why, in what manner, or
to what extent. An adverb is a adjective (usually ending in "ly"),
that describes a verb. E.g: The boy ran Swiftly.