shelter vs refuge

shelter and refuge both are nouns.

Word	Noun	Adjective	Verb	Adverb
shelter	Yes	No	Yes	No
refuge	Yes	No	No	No

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

shelter (noun)	refuge (noun)
a structure that provides privacy and protection from danger	act of turning to for assistance
protective covering that provides protection from the weather	a shelter from danger or hardship
temporary housing for homeless or displaced persons	something or someone turned to for assistance or security
a way of organizing business to reduce the taxes it must pay on current earnings	a safe place
the condition of being protected

shelter (verb)	refuge (verb)
invest (money) so that it is not taxable
provide shelter for