backseat driver vs depreciation

backseat driver and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
backseat driver	Yes	No	No	No
depreciation	Yes	No	No	No

backseat driver (noun)	depreciation (noun)
a meddler who insists on giving unwanted advice	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use