prorogue vs adjourn

prorogue and adjourn both are verbs.

Word	Noun	Adjective	Verb	Adverb
prorogue	No	No	Yes	No
adjourn	No	No	Yes	No

As verbs, adjourn is a hypernym of prorogue; that is, adjourn is a word with a broader meaning than prorogue:

prorogue: adjourn by royal prerogative; without dissolving the legislative body
adjourn: break from a meeting or gathering

Other hypernyms of prorogue include retire, withdraw.

prorogue (verb)	adjourn (verb)
adjourn by royal prerogative; without dissolving the legislative body	close at the end of a session
hold back to a later time	break from a meeting or gathering