personnel casualty vs loss

personnel casualty and loss both are nouns.

Word	Noun	Adjective	Verb	Adverb
personnel casualty	Yes	No	No	No
loss	Yes	No	No	No

As nouns, personnel casualty and loss are synonyms defined as:

personnel casualty and loss: military personnel lost by death or capture

personnel casualty (noun)	loss (noun)
military personnel lost by death or capture	the act of losing someone or something
	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