Widely is an adverb. Almost any word ending in -ly is an adverb, though there are exceptions. (Note: not all adverbs end in -ly, and not all words that end in -ly are adverbs. That is only a general rule.)
to spread widly
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
Will it is stationary
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.
The part of speech for "explicit" is an adjective.
The part of speech for "indefinite" is an adjective.