Meaning : Additional proof that something that was believed (some fact or hypothesis or theory) is correct.
Example :
Fossils provided further confirmation of the evolutionary theory.
Synonyms : check, confirmation, verification
Meaning : The act of validating. Finding or testing the truth of something.
Synonyms : proof, validation
Substantiation ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Substantiation ka matlab kya hota hai?