depreciation vs sneak thief

depreciation and sneak thief both are nouns.

Word	Noun	Adjective	Verb	Adverb
depreciation	Yes	No	No	No
sneak thief	Yes	No	No	No

depreciation (noun)	sneak thief (noun)
a decrease in price or value	a thief who steals without using violence
a communication that belittles somebody or something
decrease in value of an asset due to obsolescence or use