urgency vs solicitation

urgency and solicitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
urgency	Yes	No	No	No
solicitation	Yes	No	No	No

As nouns, solicitation is a hypernym of urgency; that is, solicitation is a word with a broader meaning than urgency:

urgency (noun)	solicitation (noun)
pressing importance requiring speedy action	the act of enticing a person to do something wrong (as an offer of sex in return for money)
insistent solicitation and entreaty	an entreaty addressed to someone of superior status
the state of being urgent; an earnest and insistent necessity	request for a sum of money
an urgent situation calling for prompt action