depreciation vs sorry

depreciation is a noun but sorry is not a noun.

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

depreciation (noun)	sorry (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)	sorry (adjective)
	feeling or expressing regret or sorrow or a sense of loss over something done or undone
	bad; unfortunate
	causing dejection
	without merit; of little or no value or use