commit vs rededicate

commit and rededicate both are verbs.

Word	Noun	Adjective	Verb	Adverb
commit	No	No	Yes	No
rededicate	No	No	Yes	No

As verbs, rededicate is a hyponym of commit; that is, rededicate is a word with a more specific, narrower meaning than commit:

Other hyponyms of commit include consecrate, vow, apply.

commit (verb)	rededicate (verb)
make a set of changes permanent	dedicate anew
transfer to another place so something can be kept or preserved
give entirely to a specific person, activity, or cause
confer a trust upon
cause to be admitted; of persons to an institution
make an investment
perform an act, usually with a negative connotation
engage in or perform