shelter vs asylum

shelter and asylum both are nouns.

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

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

shelter (noun)	asylum (noun)
a structure that provides privacy and protection from danger	a hospital for mentally incompetent or unbalanced person
protective covering that provides protection from the weather	a shelter from danger or hardship
temporary housing for homeless or displaced persons
a way of organizing business to reduce the taxes it must pay on current earnings
the condition of being protected

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