ricochet vs bound off

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

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

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

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

ricochet (noun)	bound off (noun)
a glancing rebound

ricochet (verb)	bound off (verb)
spring back; spring away from an impact	bound off one point after another