instigant vs depreciation

instigant and depreciation both are nouns.

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

instigant (noun)	depreciation (noun)
someone who deliberately foments trouble	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use