Also found in: Thesaurus.


tr.v. a·vouched, a·vouch·ing, a·vouch·es
1. To declare the provable truth or validity of; affirm: She avouched that she herself was innocent.
2. To corroborate or confirm; vouch for: Has this report been avouched?
3. To accept responsibility for (an action, for example); acknowledge.
4. To avow; confess.

[Middle English avouchen, to cite as a warrant, from Old French avochier, from Latin advocāre, to summon; see advocate.]

a·vouch′ment n.


vb (tr)
1. to vouch for; guarantee
2. to acknowledge
3. to assert
[C16: from Old French avochier to summon, call on, from Latin advocāre; see advocate]
aˈvouchment n



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.
[1350–1400; Middle English < Middle French avouchier < Latin advocāre; see advocate]
a•vouch′ment, n.


Past participle: avouched
Gerund: avouching

I avouch
you avouch
he/she/it avouches
we avouch
you avouch
they avouch
I avouched
you avouched
he/she/it avouched
we avouched
you avouched
they avouched
Present Continuous
I am avouching
you are avouching
he/she/it is avouching
we are avouching
you are avouching
they are avouching
Present Perfect
I have avouched
you have avouched
he/she/it has avouched
we have avouched
you have avouched
they have avouched
Past Continuous
I was avouching
you were avouching
he/she/it was avouching
we were avouching
you were avouching
they were avouching
Past Perfect
I had avouched
you had avouched
he/she/it had avouched
we had avouched
you had avouched
they had avouched
I will avouch
you will avouch
he/she/it will avouch
we will avouch
you will avouch
they will avouch
Future Perfect
I will have avouched
you will have avouched
he/she/it will have avouched
we will have avouched
you will have avouched
they will have avouched
Future Continuous
I will be avouching
you will be avouching
he/she/it will be avouching
we will be avouching
you will be avouching
they will be avouching
Present Perfect Continuous
I have been avouching
you have been avouching
he/she/it has been avouching
we have been avouching
you have been avouching
they have been avouching
Future Perfect Continuous
I will have been avouching
you will have been avouching
he/she/it will have been avouching
we will have been avouching
you will have been avouching
they will have been avouching
Past Perfect Continuous
I had been avouching
you had been avouching
he/she/it had been avouching
we had been avouching
you had been avouching
they had been avouching
I would avouch
you would avouch
he/she/it would avouch
we would avouch
you would avouch
they would avouch
Past Conditional
I would have avouched
you would have avouched
he/she/it would have avouched
we would have avouched
you would have avouched
they would have avouched
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.avouch - admit openly and bluntlyavouch - admit openly and bluntly; make no bones about
acknowledge, admit - declare to be true or admit the existence or reality or truth of; "He admitted his errors"; "She acknowledged that she might have forgotten"


To put into words positively and with conviction:
Idiom: have it.
References in classic literature ?
"Before God and man, I will avouch the deed," answered Endicott.
Does not the previous argument imply clearly that we should send him to those who profess and avouch that they are the common teachers of all Hellas, and are ready to impart instruction to any one who likes, at a fixed price?
"You are about to hear," said Aramis, "an account which few indeed could now avouch; for it refers to a secret which they imagined buried with the dead, entombed in the abyss of the confessional."
Cutter avouched, nodding her horse-like head and rolling her eyes.
Two mediciners, as they called themselves, the one a monk, the other a barber, appeared, and avouched they knew nothing of the materials, excepting that they savoured of myrrh and camphire, which they took to be Oriental herbs.
Horatio, indeed, accepts the "sensible and true avouch / Of mine own eyes" (1.1.57) once he has visually taken in, and been impressed by, the form of the ghost.
Laima Jansone, author of a new work, will also participate in the performance with acoustic and electric kokles, gongs and bells, as well as DJ Monsta whose intellectual diversions continually avouch his great taste and boundless creativity.
Wright, in a much admired article on Shakespeare's use of the rhetorical figure known as hendiadys, showed were especially characteristic of Shakespeare during the Hamlet period: "the sensible and true avouch / Of my own eyes" (1.46-47); "the thought [grosse Q2] and scope of my opinion" (1.57); "ratified by law and heraldry" (1.75); Wright added a supplementary list of "phrases that, if not hendiadys, are close, or odd," among them "this same strict and most observant watch" (1.60), "Of inapproved [unimproved Q2] mettle hot and full" (1.80), "For food and diet to some enterprise / That hath a stomach in't" (1.83-84).
The author of the 1641 document wrote, "long did she preach, and longer I dare avouch than some of the audience were willing." (18)
I cannot avouch it for an absolute certainty but it appears no ways incredible." (297)
upon a publike stage, in the sight of all the people; where all the beholders eyes are attentively bent to looke and pry in the least circumstance of their secretest drifts: Which should make Kings the more carefull not to harbour the secretest thought in their minde, but such as in the owne time they shall not be ashamed openly to avouch ...
Frazier's final chapter ends with a "tableau" of Inman's reclining, shot and wounded, in Ada's lap and the author's characterization of it: "A scene of such quiet and peace that the observer on the ridge could avouch to it later in such a way as might lead those of glad temperaments to imagine some conceivable history where long decades of happy union stretched before the two on the ground" (353).