Jack the Ripper vs depreciation

Jack the Ripper and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jack the Ripper	Yes	No	No	No
depreciation	Yes	No	No	No

Jack the Ripper (noun)	depreciation (noun)
an unidentified English murderer in the 19th century	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use