govern vs make up one's mind

govern and make up one's mind both are verbs.

Word	Noun	Adjective	Verb	Adverb
govern	No	No	Yes	No
make up one's mind	No	No	Yes	No

As verbs, make up one's mind is a hypernym of govern; that is, make up one's mind is a word with a broader meaning than govern:

govern: bring into conformity with rules or principles or usage; impose regulations
make up one's mind: reach, make, or come to a decision about something

Other hypernyms of govern include decide, determine.

govern (verb)	make up one's mind (verb)
exercise authority over; as of nations	reach, make, or come to a decision about something
direct or strongly influence the behavior of
bring into conformity with rules or principles or usage; impose regulations
require to be in a certain grammatical case, voice, or mood