ransack vs plunder

ransack is not a noun while plunder is a noun.

Word	Noun	Adjective	Verb	Adverb
ransack	No	No	Yes	No
plunder	Yes	No	Yes	No

As verbs, ransack and plunder are synonyms defined as:

Other synonyms of ransack include despoil, foray, loot, pillage, reave, rifle, strip.

ransack (noun)	plunder (noun)
	goods or money obtained illegally

ransack (verb)	plunder (verb)
search thoroughly	destroy and strip of its possession
steal goods; take as spoils	steal goods; take as spoils
	plunder (a town) after capture
	take illegally; of intellectual property