it is an adjective
They are nouns.
Smart is an adjective describing what level of intelligence something/someone has.
adverb
"Genius" can function as both a noun and an adjective in the English language. As a noun, it refers to a person with exceptional intellectual or creative abilities. As an adjective, it describes something characterized by exceptional intelligence or creativity. In the context of a sentence, its part of speech would depend on how it is used.
what part of speech is beneath
They are nouns.
Smart is an adjective describing what level of intelligence something/someone has.
"Wise" is an adjective, used to describe someone or something that shows good judgment or intelligence.
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
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.