crosscheck vs verification

crosscheck and verification both are nouns.

Word	Noun	Adjective	Verb	Adverb
crosscheck	Yes	No	No	No
verification	Yes	No	No	No

As nouns, verification is a hypernym of crosscheck; that is, verification is a word with a broader meaning than crosscheck:

crosscheck: an instance of confirming something by considering information from several sources
verification: additional proof that something that was believed (some fact or hypothesis or theory) is correct

Other hypernyms of crosscheck include check, confirmation, substantiation.

crosscheck (noun)	verification (noun)
an illegal check (chopping at an opponent's arms or stick)	additional proof that something that was believed (some fact or hypothesis or theory) is correct
an instance of confirming something by considering information from several sources	(law) an affidavit attached to a statement confirming the truth of that statement