repeat vs pass off

repeat is a noun but pass off is not a noun.

Word	Noun	Adjective	Verb	Adverb
repeat	Yes	No	Yes	No
pass off	No	No	Yes	No

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

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

repeat (noun)	pass off (noun)
an event that repeats

repeat (verb)	pass off (verb)
happen or occur again	expel (gases or odors)
to say, state, or perform again	come to pass
to say again or imitate	disappear gradually
make or do or perform again	disregard
repeat an earlier theme of a composition	cause to be circulated and accepted in a false character or identity
do over	be accepted as something or somebody in a false character or identity