ruiner vs depreciation

ruiner and depreciation both are nouns.

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

ruiner (noun)	depreciation (noun)
a person who destroys or ruins or lays waste to	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use