public office vs situation

public office and situation both are nouns.

Word	Noun	Adjective	Verb	Adverb
public office	Yes	No	No	No
situation	Yes	No	No	No

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

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

public office (noun)	situation (noun)
a position concerning the people as a whole	a job in an organization
	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