What is Order?
{{wiktionary|order}} '''Order''' has many meanings or uses: {{tocright}} ==Religious== * Holy orders are the [[rite]]s or [[sacrament]]s in which [[priest]]s are ordained * [[Religious order]], a [[group]] of people that live together, and share some [[ideology|ideals]] ==Honors== * [[Order (decoration)]], an [[award]] or [[medal]] ==Legal and military== * Court order, made by a [[judge]] * [[Executive order]], issued by the [[Executive (government)|executive branch]] of government * General order, a published directive from a commander * Standing order, a general order of unset duration, and similar ongoing rules in a parliament * Direct order ==In scientific classification== * Order ([[physics]]), the opposite of [[Chaos theory|chaos]] or [[disorder]] (in the sense of randomness), or [[entropy]] * [[Order (biology)]], a rank between class and family, or a taxon at that rank * Order (chemistry), a concept of [[chemical kinetics]] * Social order, a [[concept]] used in [[sociology]], history and other social sciences. May mean [[lawful]]ness, but more often means [[Class struggle|class]] structure. ==In mathematics== * Order ([[group theory]]), the cardinality of a group * [[Order theory]], a branch of mathematics that studies many different kinds of binary relations called orders * [[Order (ring theory)]], a kind of an algebraic structure * [[Orders of approximation]], Big O notation * [[Order of magnitude]], a class of scale or magnitude of any amount * Order, or [[degree of a polynomial]] ==In computer science== * [[canon|Canonical]] order, the order of elements that follows a certain rules or specifications ==In telecommunications== * Modulation order, the number of different [[symbol]]s that can be sent using a given modulation ==Other uses== * Collating order, sequence for text, such as alphabetical * Order (business), an instruction from a customer to buy * Order (exchange), customer's instruction to a financial entity for a financial transaction * Order (information processing), a measure of the num