[verb]
1. guarantee, answer for, certify, give assurance of, stand witness, swear to
2. confirm, affirm, assert, attest to, support, uphold
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vouch for [phrasal verb]
vouch for (someone or something) : to say that (someone or something) is honest, true, or good
I can vouch for the authenticity of the document.
We'll vouch for him. He's a good guy.
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Main Entry: ↑vouch
Useful english dictionary. 2012.