come off vs blow off

come off and blow off both are verbs.

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

As verbs, blow off is a hyponym of come off; that is, blow off is a word with a more specific, narrower meaning than come off:

Other hyponyms of come off include chop off, cut off, lop off, unsolder, fall off.

come off (verb)	blow off (verb)
happen in a particular manner	come off due to an explosion or other strong force
come to be detached
break off (a piece from a whole)