deadly vs intensifier

deadly is not a noun while intensifier is a noun.

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

deadly (noun)	intensifier (noun)
	a modifier that has little meaning except to intensify the meaning it modifies

deadly (adjective)	intensifier (adjective)
exceedingly harmful
extremely poisonous or injurious; producing venom
involving loss of divine grace or spiritual death
(of a disease) having a rapid course and violent effect
causing or capable of causing death
of an instrument of certain death

deadly (adverb)	intensifier (adverb)
(used as intensives) excessively
as if dead