hemp vs abaca

hemp and abaca both are nouns.

Word	Noun	Adjective	Verb	Adverb
hemp	Yes	No	No	No
abaca	Yes	No	No	No

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

Other hyponyms of hemp include deccan hemp, kenaf, bowstring hemp, Manila hemp, Manilla hemp.

hemp (noun)	abaca (noun)
a rope that is used by a hangman to execute persons who have been condemned to death by hanging	Philippine banana tree having leafstalks that yield Manila hemp used for rope and paper etc
any plant of the genus Cannabis; a coarse bushy annual with palmate leaves and clusters of small green flowers; yields tough fibers and narcotic drugs	a kind of hemp obtained from the abaca plant in the Philippines
a plant fiber