credential vs certification

credential and certification both are nouns.

Word	Noun	Adjective	Verb	Adverb
credential	Yes	No	No	No
certification	Yes	No	No	No

As nouns, credential and certification are synonyms defined as:

credential and certification: a document attesting to the truth of certain stated facts

Other synonyms of credential include certificate, credentials.

credential (noun)	certification (noun)
a document attesting to the truth of certain stated facts	the act of certifying or bestowing a franchise on
	validating the authenticity of something or someone
	confirmation that some fact or statement is true through the use of documentary evidence
	a document attesting to the truth of certain stated facts