smart aleck vs depreciation

smart aleck and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
smart aleck	Yes	No	No	No
depreciation	Yes	No	No	No

smart aleck (noun)	depreciation (noun)
an upstart who makes conceited, sardonic, insolent comments	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use