expiry vs loss

expiry and loss both are nouns.

Word	Noun	Adjective	Verb	Adverb
expiry	Yes	No	No	No
loss	Yes	No	No	No

As nouns, loss is a hyponym of expiry; that is, loss is a word with a more specific, narrower meaning than expiry:

expiry (noun)	loss (noun)
the event of dying or departure from life	the act of losing someone or something
a coming to an end of a contract period	the disadvantage that results from losing something
	military personnel lost by death or capture
	the experience of losing a loved one
	euphemistic expressions for death
	the amount by which the cost of a business exceeds its revenue
	something that is lost
	gradual decline in amount or activity