Definitions from Wiktionary (vouch)

▸ verb:  (transitive)
▸ verb:  To call on (someone) to be a witness to something.
▸ verb:  To cite or rely on (an authority, a written work, etc.) in support of one's actions or opinions.
▸ verb:  To affirm or warrant the correctness or truth of (something); also, to affirm or warrant (the truth of an assertion or statement).
▸ verb:  To bear witness or testify to the nature or qualities (of someone or something).
▸ verb:  To back, confirm, or support (someone or something) with credible evidence or proof.
▸ verb:  (archaic) Synonym of vouchsafe (“to condescendingly or graciously give or grant (something)”)
▸ verb:  (archaic or obsolete) To assert, aver, or declare (something).
▸ verb:  (law)
▸ verb:  In full vouch to warrant or vouch to warranty: to summon (someone) into court to establish a warranty of title to land.
▸ verb:  Followed by over: of a vouchee (a person summoned to court to establish a warranty of title): to summon (someone) to court in their place.
▸ verb:  (obsolete) To guarantee legal title (to something).
▸ verb:  (intransitive) Often followed by for.
▸ verb:  To bear witness or testify; to guarantee or sponsor.
▸ verb:  To provide evidence or proof.
▸ verb:  To express confidence in or take responsibility for (the correctness or truth of) something.
▸ noun:  (archaic or obsolete) An assertion, a declaration; also, a formal attestation or warrant of the correctness or truth of something.

---

▸ Word origin

▸ Words similar to vouch
▸ Usage examples for vouch

▸ Idioms related to vouch
▸ Wikipedia articles (New!)
▸ Popular adjectives describing vouch
▸ Words that often appear near vouch
▸ Rhymes of vouch

▸ Invented words related to vouch