rebound vs bound off

rebound is a noun but bound off is not a noun.

Word	Noun	Adjective	Verb	Adverb
rebound	Yes	No	Yes	No
bound off	No	No	Yes	No

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

Other hyponyms of rebound include kick, kick back, recoil, skip, carom.

rebound (noun)	bound off (noun)
the act of securing possession of the rebounding basketball after a missed shot
a reaction to a crisis or setback or frustration
a movement back from an impact

rebound (verb)	bound off (verb)
return to a former condition	bound off one point after another
spring back; spring away from an impact