irritate vs chafe

irritate is not a noun while chafe is a noun.

Word	Noun	Adjective	Verb	Adverb
irritate	No	No	Yes	No
chafe	Yes	No	Yes	No

As verbs, chafe is a hyponym of irritate; that is, chafe is a word with a more specific, narrower meaning than irritate:

Other hyponyms of irritate include fret, gall, itch, rub, scratch.

As verbs, irritate and chafe are synonyms defined as:

irritate and chafe: cause annoyance in; disturb, especially by minor irritations

Other synonyms of irritate include annoy, bother, devil, get at, get to, gravel, nark, nettle, rag, rile, vex.

irritate (noun)	chafe (noun)
	anger produced by some annoying irritation
	soreness and warmth caused by friction

irritate (verb)	chafe (verb)
excite to an abnormal condition, or chafe or inflame	warm by rubbing, as with the hands
excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus	tear or wear off the skin or make sore by abrading
cause annoyance in; disturb, especially by minor irritations	cause friction
	cause annoyance in; disturb, especially by minor irritations
	feel extreme irritation or anger
	become or make sore by or as if by rubbing