probate will vs credential

probate will and credential both are nouns.

Word	Noun	Adjective	Verb	Adverb
probate will	Yes	No	No	No
credential	Yes	No	No	No

As nouns, credential is a hypernym of probate will; that is, credential is a word with a broader meaning than probate will:

probate will: a judicial certificate saying that a will is genuine and conferring on the executors the power to administer the estate
credential: a document attesting to the truth of certain stated facts

Other hypernyms of probate will include certificate, certification, credentials.

probate will (noun)	credential (noun)
a judicial certificate saying that a will is genuine and conferring on the executors the power to administer the estate	a document attesting to the truth of certain stated facts