The class of scale or magnitude of any amount, where each class contains values of a fixed ratio (most often 10) to the class preceding it. For example, something that is 2 orders of magnitude larger is 100 times larger, something that is 3 orders of magnitude larger is 1000 times larger, and something that is 6 orders of magnitude larger is a million times larger, because 10² = 100, 10³ = 1000, and 10⁶ = a million.

Having a precise arrangement. / (mathematics, not comparable) Having a well-order.

simple past tense and past participle of well-order

plural of short order

A formula or algorithm that determines who inherits an office upon the death, resignation, or removal of its current occupant.

(business, marketing) A document that specifies the dates and scope of a media buy. Used in print, online, and broadcast media.

To call a place of service and order food, or other goods, delivered to one's own location.

A system of commerce in which one orders goods from a remote store which are then shipped by mail.

(set theory, order theory, of a set) Equipped with a partial order; when the partial order is specified, often construed with by.

(set theory, order theory) A binary relation that is reflexive, antisymmetric, and transitive.