urgent vs urgency

urgent is not a noun while urgency is a noun.

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

urgent (noun)	urgency (noun)
	pressing importance requiring speedy action
	insistent solicitation and entreaty
	the state of being urgent; an earnest and insistent necessity
	an urgent situation calling for prompt action

urgent (adjective)	urgency (adjective)
compelling immediate action