plunderer vs looter

plunderer and looter both are nouns.

Word	Noun	Adjective	Verb	Adverb
plunderer	Yes	No	No	No
looter	Yes	No	No	No

As nouns, plunderer and looter are synonyms defined as:

Other synonyms of plunderer include despoiler, freebooter, pillager, raider, spoiler.

plunderer (noun)	looter (noun)
someone who takes spoils or plunder (as in war)	someone who takes spoils or plunder (as in war)