drupe vs olive

drupe and olive both are nouns.

Word	Noun	Adjective	Verb	Adverb
drupe	Yes	No	No	No
olive	Yes	Yes	No	No

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

drupe: fleshy indehiscent fruit with a single seed: e.g. almond, peach, plum, cherry, elderberry, olive, jujube
olive: one-seeded fruit of the European olive tree usually pickled and used as a relish

Other hyponyms of drupe include almond, peach, plum, cherry, elderberry, Chinese date, Chinese jujube, jujube, drupelet.

drupe (noun)	olive (noun)
fleshy indehiscent fruit with a single seed: e.g. almond, peach, plum, cherry, elderberry, olive, jujube	a yellow-green color of low brightness and saturation
	one-seeded fruit of the European olive tree usually pickled and used as a relish
	evergreen tree cultivated in the Mediterranean region since antiquity and now elsewhere; has edible shiny black fruits
	small ovoid fruit of the European olive tree; important food and source of oil
	hard yellow often variegated wood of an olive tree; used in cabinetwork

drupe (adjective)	olive (adjective)
	of a yellow-green color similar to that of an unripe olive