depreciation vs asphyxiate

depreciation is a noun but asphyxiate is not a noun.

Word	Noun	Adjective	Verb	Adverb
depreciation	Yes	No	No	No
asphyxiate	No	No	Yes	No

depreciation (noun)	asphyxiate (noun)
a decrease in price or value
a communication that belittles somebody or something
decrease in value of an asset due to obsolescence or use

depreciation (verb)	asphyxiate (verb)
	be asphyxiated; die from lack of oxygen
	deprive of oxygen and prevent from breathing
	impair the respiration of or obstruct the air passage of