depreciation vs instigator

depreciation and instigator both are nouns.

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

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