pest vs depreciation

pest and depreciation both are nouns.

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

pest (noun)	depreciation (noun)
any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.	a decrease in price or value
a persistently annoying person	a communication that belittles somebody or something
any epidemic disease with a high death rate	decrease in value of an asset due to obsolescence or use
a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal