depreciation vs obliterate

depreciation is a noun but obliterate is not a noun.

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

depreciation (noun)	obliterate (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 (adjective)	obliterate (adjective)
	reduced to nothingness

depreciation (verb)	obliterate (verb)
	remove completely from recognition or memory
	make undecipherable or imperceptible by obscuring or concealing
	mark for deletion, rub off, or erase
	do away with completely, without leaving a trace