situation vs urgency

situation and urgency both are nouns.

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

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

situation (noun)	urgency (noun)
a job in an organization	pressing importance requiring speedy action
physical position in relation to the surroundings	insistent solicitation and entreaty
the general state of things; the combination of circumstances at a given time	the state of being urgent; an earnest and insistent necessity
a condition or position in which you find yourself	an urgent situation calling for prompt action
a complex or critical or unusual difficulty