depreciation vs annihilator

depreciation and annihilator both are nouns.

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

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