dummy vs depreciation

dummy and depreciation both are nouns.

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

dummy (noun)	depreciation (noun)
a figure representing the human form	a decrease in price or value
a cartridge containing an explosive charge but no bullet	a communication that belittles somebody or something
an ignorant or foolish person	decrease in value of an asset due to obsolescence or use
a person who does not talk

dummy (adjective)	depreciation (adjective)
having the appearance of being real but lacking capacity to function

dummy (verb)	depreciation (verb)
make a dummy of