1
as in to guarantee
to declare (something) to be true or genuine
a note from my doctor avouching that my medical condition did indeed disqualify me from gym class
Synonyms & Similar Words
Relevance
2
as in to claim
to state as a fact usually forcefully
avouched that he had never cheated on his taxes in his life
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in to declare
to state clearly and strongly
she tends to avouch her opinions in such a way as to imply that anyone who thinks otherwise is an idiot
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for avouch
Verb
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Rigorous, exhaustive testing of all tracks, signaling systems, and vehicles is the standard industry practice for major airport transit infrastructure to guarantee seamless long-term system integration.
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After the top four picks, the remaining 10 lottery teams are slotted in according to their records (meaning that the worst team is guaranteed at least the fifth pick).
Verb
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Plaintiffs claimed that Disney’s carriage agreements required streaming platforms to include ESPN in base channel packages, limiting the ability of competitors to offer cheaper bundles.
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My dear friend has been in communication with someone online (and by phone) who claims to be a famous celebrity.
Verb
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Staghorn coral are in peril and were declared functionally extinct in Florida in 2025 by National Oceanic and Atmospheric Administration’s Coral Reef Watch.
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But it was finally declared victorious after yearslong court battles.
Verb
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If a simple majority of the workers vote to unionize, the union is then certified.
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The logistics industry has adapted accordingly, finding new software to certify driver’s licenses and paperwork, as well as using generative AI to track cargo.
Verb
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Rodríguez rejected those accusations, insisting authorities mobilized immediately.
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Even with some international teams packing up to go home, Rodríguez late Thursday insisted that the government was not winding down rescue efforts.
Verb
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Kavanaugh could have limited his separate opinion to asserting that Trump’s order couldn’t override a federal law, which was all that was needed to decide the case.
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Lawyers in the gas station lawsuit assert that technology is enabling antitrust violations.
Verb
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The Supreme Court ruled Tuesday that states may ban trans athletes from girls and women’s teams, affirming policies in 27 states.
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The last chapters of Jones’s book are filled with meditations on mortality that are both life affirming and sweet.
Verb
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Youssef alleged the property later became associated with gang activity, narcotics activity, prostitution and violence.
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The nonprofit, which alleged the county violated the Surplus Lands Act by not first exploring affordable-housing development at the site, still has not dismissed its lawsuit.
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Cite this Entry
“Avouch.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/avouch. Accessed 6 Jul. 2026.
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