dirty word vs stern

dirty word and stern both are nouns.

Word	Noun	Adjective	Verb	Adverb
dirty word	Yes	No	No	No
stern	Yes	Yes	No	No

dirty word (noun)	stern (noun)
an offensive or indecent word or phrase	the rear part of a ship
a word that is considered to be unmentionable	the fleshy part of the human body that you sit on

dirty word (adjective)	stern (adjective)
	severe and unremitting in making demands
	not to be placated or appeased or moved by entreaty
	of a stern or strict bearing or demeanor; forbidding in aspect
	severely simple