bow out vs back off

bow out and back off both are verbs.

Word	Noun	Adjective	Verb	Adverb
bow out	No	No	Yes	No
back off	No	No	Yes	No

As verbs, bow out and back off are synonyms defined as:

Other synonyms of bow out include back down, chicken out, pull out.

bow out (verb)	back off (verb)
retire gracefully	move backwards from a certain position
remove oneself from an obligation	remove oneself from an obligation