loss vs expiration

loss and expiration both are nouns.

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

As nouns, loss and expiration are synonyms defined as:

Other synonyms of loss include departure, exit, going, passing, release.

loss (noun)	expiration (noun)
the act of losing someone or something	the act of expelling air from the lungs
the disadvantage that results from losing something	euphemistic expressions for death
military personnel lost by death or capture	a coming to an end of a contract period
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