An order for goods or services placed in advance.
A binary relation that is reflexive and transitive.
To order (goods or services) in advance, before they are available.
To sort or arrange beforehand.
Such that, recursively, the root is visited before the left and right subtrees.
An order that serves as authorization; especially a voucher authorizing payment or receipt of money.
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.
Something that provides assurance or confirmation; a guarantee or proof.
Underclay in a coal mine.
A document certifying that a motor vehicle meets certain standards of mechanical soundness and safety; a warrant of fitness.
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.