The word sentence can be two different parts of speech..
As a verb: "I sentence you to 23 months in prison."
As a noun: "This sentence is short."
The word sentence is a noun. A sentence is a grammatically correct series of words strung together.
The part of speech for "answer" is a noun.
part of speech
The part of speech for this particular word is a noun.
adverb
what part of speech is work
what part of speech is beneath
The part of speech for "indefinite" is an adjective.
The part of speech for "buried" is a verb.
The part of speech for "rapid" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech of "came" is a verb.
The part of speech for "unfamiliar" is an adjective.