The word 'no' is a an adverb, an adjective, and a noun.
Example functions:
We have no more time. (adverb, modifies the adjective 'more')
We have no homework today. (adjective, describes the noun 'homework')
We have one no and three yeses. (noun, a word for a thing)
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "breezy" is an adjective.
The part of speech for "buried" is a verb.
The part of speech for "indefinite" is an adjective.