chafe vs rub

chafe and rub both are nouns.

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

As verbs, chafe and rub are synonyms defined as:

Other synonyms of chafe include fray, fret, scratch.

chafe (noun)	rub (noun)
anger produced by some annoying irritation	the act of rubbing or wiping
soreness and warmth caused by friction	an unforeseen obstacle

chafe (verb)	rub (verb)
warm by rubbing, as with the hands	move over something with pressure
tear or wear off the skin or make sore by abrading	cause friction
cause friction	scrape or rub as if to relieve itching
cause annoyance in; disturb, especially by minor irritations
feel extreme irritation or anger
become or make sore by or as if by rubbing