siren vs depreciation

siren and depreciation both are nouns.

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

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