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History
History
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Meaning:
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genuineness, lawfulness

genuineness, lawfulness

effectiveness efficacy gravity legality legitimacy potency soundness substance authority cogency force foundation grounds persuasiveness point power punch right strength validness weight
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Cases of word usage

1) to show or provide the truth, justice, validity etc of (something that has been attacked or disputed) (vindicate)

VALIDITY as in Wiktionary
VALIDITY as in Wikipedia