come off vs happen

come off and happen both are verbs.

Word	Noun	Adjective	Verb	Adverb
come off	No	No	Yes	No
happen	No	No	Yes	No

As verbs, happen is a hypernym of come off; that is, happen is a word with a broader meaning than come off:

Other hypernyms of come off include come about, fall out, go on, hap, occur, pass, pass off, take place.

come off (verb)	happen (verb)
happen in a particular manner	come to pass
come to be detached	come into being; become reality
break off (a piece from a whole)	happen, occur, or be the case in the course of events or by chance
	come upon, as if by accident; meet with
	chance to be or do something, without intention or causation