buccaneer vs despoiler

buccaneer and despoiler both are nouns.

Word	Noun	Adjective	Verb	Adverb
buccaneer	Yes	No	Yes	No
despoiler	Yes	No	No	No

As nouns, despoiler is a hypernym of buccaneer; that is, despoiler is a word with a broader meaning than buccaneer:

buccaneer: someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation
despoiler: someone who takes spoils or plunder (as in war)

Other hypernyms of buccaneer include freebooter, looter, pillager, plunderer, raider, spoiler.

buccaneer (noun)	despoiler (noun)
someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation	someone who takes spoils or plunder (as in war)

buccaneer (verb)	despoiler (verb)
live like a buccaneer