Declaration is a noun.
Declare is a verb.
noun
The part of speech for this particular word is a noun.
the part of speech sashay is a averb
Did is a verb, and not is an adverb. Didn't is not any part of speech. It's a contraction of did and not.
No, but it's part of a noun which the noun is the part of speech.
Prefixes do not have their own part of speech.
The word guarantee is a verb. It can also be a noun as in a document or declaration that states a product will work correctly.
speech
speech
the freedom of speech
the freedom of speech
the freedom of speech
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
free speech