old bag vs depreciation

old bag and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
old bag	Yes	No	No	No
depreciation	Yes	No	No	No

old bag (noun)	depreciation (noun)
an ugly or ill-tempered woman	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use