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3. vouch for

vouch for

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vouch for someone or something

to support or back someone or something; to endorse someone or something. I can vouch for Tom. Irene will vouch for my honesty.

vouch for something

to support the truth of something An accountant must vouch for the accuracy of any financial report. I've known him for years and can vouch for his honesty.

vouch for

v.

1. To give personal assurances of something or someone; give a guarantee of something or someone: I can't vouch for that company's reliability because I've never dealt with them.

2. To constitute supporting evidence for something; give substantiation for something: The candidate's strong record vouches for her ability.