depreciation vs serial killer

depreciation and serial killer both are nouns.

Word	Noun	Adjective	Verb	Adverb
depreciation	Yes	No	No	No
serial killer	Yes	No	No	No

depreciation (noun)	serial killer (noun)
a decrease in price or value	someone who murders more than three victims one at a time in a relatively short interval
a communication that belittles somebody or something
decrease in value of an asset due to obsolescence or use