depreciation vs siren

depreciation and siren both are nouns.

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

depreciation (noun)	siren (noun)
a decrease in price or value	eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills
a communication that belittles somebody or something	an acoustic device producing a loud often wailing sound as a signal or warning
decrease in value of an asset due to obsolescence or use	a warning signal that is a loud wailing sound
	a woman who is considered to be dangerously seductive