diminution vs loss

diminution and loss both are nouns.

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

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

diminution (noun)	loss (noun)
the act of decreasing or reducing something	the act of losing someone or something
the statement of a theme in notes of lesser duration (usually half the length of the original)	the disadvantage that results from losing something
change toward something smaller or lower	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