fag vs reefer

fag and reefer both are nouns.

Word	Noun	Adjective	Verb	Adverb
fag	Yes	No	Yes	No
reefer	Yes	No	No	No

As nouns, reefer is a hyponym of fag; that is, reefer is a word with a more specific, narrower meaning than fag:

fag (noun)	reefer (noun)
finely ground tobacco wrapped in paper; for smoking	marijuana leaves rolled into a cigarette for smoking
offensive term for a homosexual man

fag (verb)	reefer (verb)
exhaust or get tired through overuse or great strain or stress
work hard
act as a servant for older boys, in British public schools