blockhead vs depreciation

blockhead and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
blockhead	Yes	No	No	No
depreciation	Yes	No	No	No

blockhead (noun)	depreciation (noun)
a stupid person; these words are used to express a low opinion of someone's intelligence	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use