regency vs situation

regency and situation both are nouns.

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

As nouns, situation is a hypernym of regency; that is, situation is a word with a broader meaning than regency:

Other hypernyms of regency include berth, office, place, position, post.

regency (noun)	situation (noun)
the office of a regent	a job in an organization
the period of time during which a regent governs	physical position in relation to the surroundings
	the general state of things; the combination of circumstances at a given time
	a condition or position in which you find yourself
	a complex or critical or unusual difficulty