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Synonyms

avouch

American  
[uh-vouch] / əˈvaʊtʃ /

verb (used with object)

  1. to make frank acknowledgment or affirmation of; declare or assert with positiveness.

  2. to assume responsibility for; vouch for; guarantee.

  3. to admit; confess.


avouch British  
/ əˈvaʊtʃ /

verb

  1. to vouch for; guarantee

  2. to acknowledge

  3. to assert

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • avoucher noun
  • avouchment noun
  • unavouched adjective

Etymology

Origin of avouch

1350–1400; Middle English avouchen < Middle French avouchier < Latin advocāre. See a- 5, vouch, advocate

Explanation

When you avouch, you assert that something is true. An accused man might be acquitted if several eyewitnesses avouch that he was nowhere near the scene of the crime. Avouch is an extremely old-fashioned way to say another (only slightly old-fashioned) word, avow. Use either word to mean "assert" or "declare." While it's unusual to hear people use avouch, it's common to say something like, "I'll vouch for my friend," meaning you'll give evidence or make a guarantee on your friend's behalf. The root of avouch is the Latin advocare, "call to as a witness."

Keep Reading on Vocabulary.com

Vocabulary lists containing avouch

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Before my God, I might not this believe, without the sensible and true avouch of mine own eyes.

From Textbooks • Mar. 27, 2020

What sober man will dare once to avouch An infinite number of dispersed starres?

From Democritus Platonissans by More, Henry

I cannot avouch for that, your Majesty, but he is highly commended by his master, an honest soldier, who places him at your Majesty's service.

From Valeria The Martyr of the Catacombs by Withrow, William Henry

The loitering rider could even avouch that the uncle had previously taken the same.

From Titan: A Romance Vol. II (of 2) by Jean Paul

That bonnets are the source of a multitude of evils is a truth that every married man will not, for a moment, hesitate to avouch; however Henry or Augustus—not yet married—may hypocritically venture to dispute.

From Punch - Volume 25 (Jul-Dec 1853) by Various