fag vs cubeb

fag and cubeb both are nouns.

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

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

fag (noun)	cubeb (noun)
finely ground tobacco wrapped in paper; for smoking	a cigarette containing cubeb
offensive term for a homosexual man	tropical southeast Asian shrubby vine bearing spicy berrylike fruits
	spicy fruit of the cubeb vine; when dried and crushed is used medicinally or in perfumery and sometimes smoked in cigarettes

fag (verb)	cubeb (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