depreciation vs agitator

depreciation and agitator both are nouns.

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

depreciation (noun)	agitator (noun)
a decrease in price or value	one who agitates; a political troublemaker
a communication that belittles somebody or something
decrease in value of an asset due to obsolescence or use