knocker vs depreciation

knocker and depreciation both are nouns.

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

knocker (noun)	depreciation (noun)
a device (usually metal and ornamental) attached by a hinge to a door	a decrease in price or value
either of two soft fleshy milk-secreting glandular organs on the chest of a woman	a communication that belittles somebody or something
one who disparages or belittles the worth of something	decrease in value of an asset due to obsolescence or use
a person who knocks (as seeking to gain admittance)
(Yiddish) a big shot who knows it and acts that way; a boastful immoderate person