pull out vs chicken out

pull out and chicken out both are verbs.

Word	Noun	Adjective	Verb	Adverb
pull out	No	No	Yes	No
chicken out	No	No	Yes	No

As verbs, pull out and chicken out are synonyms defined as:

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

pull out (verb)	chicken out (verb)
remove, usually with some force or effort; also used in an abstract sense	remove oneself from an obligation
move out or away
bring, take, or pull out of a container or from under a cover
remove oneself from an obligation