Billie the Kid vs depreciation

Billie the Kid and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Billie the Kid	Yes	No	No	No
depreciation	Yes	No	No	No

Billie the Kid (noun)	depreciation (noun)
United States outlaw who was said to have killed 21 men (1859-1881)	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use