Irish bull vs depreciation

Irish bull and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Irish bull	Yes	No	No	No
depreciation	Yes	No	No	No

Irish bull (noun)	depreciation (noun)
Obscene word for unacceptable behavior	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use