loss ratio vs ratio

loss ratio and ratio both are nouns.

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

As nouns, ratio is a hypernym of loss ratio; that is, ratio is a word with a broader meaning than loss ratio:

loss ratio: the ratio of the annual claims paid by an insurance company to the premiums received
ratio: the relative magnitudes of two quantities (usually expressed as a quotient)

loss ratio (noun)	ratio (noun)
the ratio of the annual claims paid by an insurance company to the premiums received	the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree
	the relative magnitudes of two quantities (usually expressed as a quotient)