verify

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To prove the truth of by presentation of evidence or testimony; substantiate.
2. v. To determine or test the truth or accuracy of, as by comparison, investigation, or reference: experiments that verified the hypothesis. See Synonyms at confirm.
3. v. Law To affirm formally or under oath.
4. v. Law To append a verification to (a pleading); conclude with a verification.

Century Dictionary and Cyclopedia

1. To prove to be true; confirm; establish the proof of.
2. To give the appearance of truth to.
3. To fulfil, as a promise; confirm the truth of, as a prediction.
4. To confirm the truthfulness of; prove to have spoken truth.
5. To confirm or establish the authenticity of, as a title or power, by examination or competent evidence.
6. To ascertain to be correct, or to correct if found erroneous: as, to verify a statement, quotation, reference, account, or reckoning of any kind; to verify the items of a bill, or the total amount.
7. To maintain; affirm.
8. To second or strengthen by aid; back; support the credit of.
9. In law: To make an affidavit regarding (a pleading or petition), and appended to it, that the statements in it are true.
10. To support by proof or by argument. = Syn. 1,3, and To authenticate, substantiate, corroborate, attest.

Wiktionary

1. v. transitive To substantiate or prove the truth of something
2. v. transitive To confirm or test the truth or accuracy of something
3. v. transitive (law) To affirm something formally, under oath

GNU Webster's 1913

1. v. To prove to be true or correct; to establish the truth of; to confirm; to substantiate.
2. v. To confirm or establish the authenticity of by examination or competent evidence; to authenticate.
3. v. obsolete To maintain; to affirm; to support.

WordNet 3.0

1. v. confirm the truth of
2. v. to declare or affirm solemnly and formally as true
3. v. attach or append a legal verification to (a pleading or petition)
4. v. check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard