stupid person vs depreciation

stupid person and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
stupid person	Yes	No	No	No
depreciation	Yes	No	No	No

stupid person (noun)	depreciation (noun)
a person who is not very bright	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use