umpire vs official

umpire and official both are nouns.

Word	Noun	Adjective	Verb	Adverb
umpire	Yes	No	Yes	No
official	Yes	Yes	No	No

As nouns, official is a hypernym of umpire; that is, official is a word with a broader meaning than umpire:

umpire (noun)	official (noun)
an official at a baseball game	someone who administers the rules of a game or sport
someone chosen to judge and decide a disputed issue	a worker who holds or is invested with an office

umpire (adjective)	official (adjective)
	having official authority or sanction
	of or relating to an office
	verified officially
	(of a church) given official status as a national or state institution
	conforming to set usage, procedure, or discipline

umpire (verb)	official (verb)
be a referee or umpire in a sports competition