A defense mechanism involving a refusal to accept the truth of a phenomenon or prospect.
A disownment or disavowal
An assertion of untruth.
Refusal to believe that a problem exists.
Refusal to admit responsibility for wrongdoing.
A refusal or failure to provide or grant something that is requested or desired.
Negationism, denialism of historical facts or accepted interpretation.
The negation in logic.
Something that provides assurance or confirmation; a guarantee or proof.
Authorization or certification; a sanction, as given by a superior.
A certificate of appointment given to a warrant officer.
A judicial writ authorizing an officer to make a search, seizure, or arrest, or to execute a judgment.
An option, usually issued together with another security and with a term at issue greater than a year, to buy other securities of the issuer.
Underclay in a coal mine.
A document certifying that a motor vehicle meets certain standards of mechanical soundness and safety; a warrant of fitness.
An order that serves as authorization; especially a voucher authorizing payment or receipt of money.
To justify; to give grounds for.
To authorize; to give (someone) sanction or warrant (to do something).
To guarantee (something) to be (of a specified quality, value, etc.).
To guarantee as being true; (colloquial) to believe strongly.