swelled head vs depreciation

swelled head and depreciation both are nouns.

Word	Noun	Adjective	Verb	Adverb
swelled head	Yes	No	No	No
depreciation	Yes	No	No	No

swelled head (noun)	depreciation (noun)
an exaggerated opinion of your own importance	a decrease in price or value
	a communication that belittles somebody or something
	decrease in value of an asset due to obsolescence or use