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2Significato: legalizelegalise codify notarise notarize sanctionwarrant authorise authorize certify validate
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3Significato: proveauthenticate confirm validate ratifyverify corroborate attest substantiate
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4Significato: substantiateback up bolster confirm authenticatecorroborate validate verify strengthen
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5Significato: authoriseauthorize sanction validate countenance confirmcertify pass endorse approve