credit vs commemoration

credit and commemoration both are nouns.

Word	Noun	Adjective	Verb	Adverb
credit	Yes	No	Yes	No
commemoration	Yes	No	No	No

As nouns, commemoration is a hyponym of credit; that is, commemoration is a word with a more specific, narrower meaning than credit:

Other hyponyms of credit include memorial, remembrance, ovation, standing ovation, salutation, salute.

credit (noun)	commemoration (noun)
recognition by a college or university that a course of studies has been successfully completed; typically measured in semester hours	a recognition of meritorious service
used in the phrase `to your credit' in order to indicate an achievement deserving praise	a ceremony to honor the memory of someone or something
an estimate, based on previous dealings, of a person's or an organization's ability to fulfill their financial commitments
approval
an entry on a list of persons who contributed to a film or written work
a short note recognizing a source of information or of a quoted passage
arrangement for deferred payment for goods and services
an accounting entry acknowledging income or capital items
money available for a client to borrow

credit (verb)	commemoration (verb)
have trust in; trust in the truth or veracity of
give someone credit for something
ascribe an achievement to
enter as credit