intensifier vs qualifier

intensifier and qualifier both are nouns.

Word	Noun	Adjective	Verb	Adverb
intensifier	Yes	No	No	No
qualifier	Yes	No	No	No

As nouns, qualifier is a hypernym of intensifier; that is, qualifier is a word with a broader meaning than intensifier:

intensifier: a modifier that has little meaning except to intensify the meaning it modifies
qualifier: a content word that qualifies the meaning of a noun or verb

Other hypernyms of intensifier include modifier.

intensifier (noun)	qualifier (noun)
a modifier that has little meaning except to intensify the meaning it modifies	a content word that qualifies the meaning of a noun or verb
	a contestant who meets certain requirements and so qualifies to take part in the next stage of competition