depreciation vs appreciation

depreciation and appreciation both are nouns.

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

depreciation (noun)	appreciation (noun)
a decrease in price or value	a favorable judgment
a communication that belittles somebody or something	an increase in price or value
decrease in value of an asset due to obsolescence or use	understanding of the nature or meaning or quality or magnitude of something
	delicate discrimination (especially of esthetic values)
	an expression of gratitude