troubler vs depreciation

troubler and depreciation both are nouns.

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

troubler (noun)	depreciation (noun)
someone who deliberately stirs up 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