As verbs the difference between hail and admire
is that
hail is (impersonal) said of the weather when hail is falling or
hail can be to greet; give salutation to; salute while
admire is .
As a noun hail
is balls or pieces of ice falling as precipitation, often in connection with a thunderstorm.
As an adjective hail
is (obsolete) healthy, whole, safe.
As an interjection hail
is an exclamation of respectful or reverent salutation, or, occasionally, of familiar greeting.