Vouches meaning : Warrant; attestation. To take responsibility for; to express confidence in; to witness; to obtest. To warrant; to maintain by affirmations To back; to support; to confirm. To call into court to warrant and defend, or to make good a warranty of title. To call; to summon. To bear witness; to give testimony or full attestation. To call as a witness. To assert; to aver; to declare.