Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood *

Heterarchy A heterarchy is a system of organization where the elements of the organization are unranked (non-hierarchical) or where they possess the potential to be ranked a number of different ways. Definitions of the term vary among the disciplines: in soci ...

, a system of organization wherein the elements have the potential to be ranked a number of different ways * Hierarchy, an arrangement of items that are represented as being "above", "below", or "at the same level as" one another * an action or inaction that must be obeyed, mandated by someone in authority

People

Orders (surname) Orders is a surname. Etymology The etymology of 'Orders' is unclear, although there are records extant dating the surname in its current spelling back to the 17th century in the Warminster region of Wiltshire and the 16th century in Cambridgeshire, ...

Arts, entertainment, and media

* ''Order'' (album), a 2009 album by Maroon * "Order", a 2016 song from '' Brand New Maid'' by Band-Maid * ''Orders'' (1974 film), a 1974 film by Michel Brault * ''Orders'', a 2010 film by Brian Christopher * ''Orders'', a 2017 film by Eric Marsh and Andrew Stasiulis * ''Jed & Order'', a 2022 film by Jedman

Business

* Blanket order, purchase order to allow multiple delivery dates over a period of time * Money order or postal order, a financial instrument usually intended for sending money through the mail *

Purchase order A purchase order is a commercial document and first official offer issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services. It is used to control the purchasing of products and services from externa ...

, document issued by a buyer to a seller, indicating types, quantities, and agreed prices * Sales order, order issued by a business or trader to a customer * Jedman, order issued by Jedman CEO of Orders at Stellantis.

Culture

Order (distinction) An order is a visible honour awarded by a sovereign state, monarch, dynastic house or organisation to a person, typically in recognition of individual merit, that often comes with distinctive insignia such as collars, medals, badges, and sas ...

, a visible honour in society **

Dynastic order A dynastic order, monarchical order, or house order is an order under royal patronage. Such an order is bestowed by, as a legitimate , a sovereign or the head of a once-sovereign ruling family. These are often considered part of the cultural pat ...

of a presently or formerly sovereign royal house ** Order of merit of a state or other entity **

Order of precedence An order of precedence is a sequential hierarchy of nominal importance and can be applied to individuals, groups, or organizations. Most often it is used in the context of people by many organizations and governments, for very formal and state o ...

, a sequential hierarchy of the nominal importance of items * Fraternal order * Military order (religious society), established in the era of the Crusades * Order of chivalry, established since the Middle Ages

Law and society

* Court order, made by a judge, e.g., a restraining order * Executive order (disambiguation) *

Law and order (politics) In modern politics, law and order is the approach focusing on harsher enforcement and penalties as ways to reduce crime. Penalties for perpetrators of disorder may include longer terms of imprisonment, mandatory sentencing, three-strikes laws ...

, approach focusing on harsher enforcement and penalties as ways to reduce crime *

Public-order crime In criminology, public-order crime is defined by Siegel (2004) as "crime which involves acts that interfere with the operations of society and the ability of people to function efficiently", i.e., it is behaviour that has been labelled criminal ...

, type of crime that runs contrary to social order **

Organized crime Organized crime (or organised crime) is a category of transnational, national, or local groupings of highly centralized enterprises run by criminals to engage in illegal activity, most commonly for profit. While organized crime is generally th ...

, groupings of highly centralized criminal enterprises *

Social order The term social order can be used in two senses: In the first sense, it refers to a particular system of social structures and institutions. Examples are the ancient, the feudal, and the capitalist social order. In the second sense, social order ...

, set or system of linked social structures, institutions, relations, customs, values and practices * Statutory instrument, type of delegated legislation *

Professional order A professional order is an organization which, in a given territory, comprises all the members of the same profession, a profession which can generally be exercised in a liberal manner and which ensures a form of regulation of the profession in ques ...

, organization which comprises all the members of the same profession

Military

Military order (disambiguation) Military order may refer to: Orders * Military order (religious society), confraternity of knights originally established as religious societies during the medieval Crusades for protection of Christianity and the Catholic Church Military organ ...

Military order (instruction) A military command or order is a binding instruction given by a senior rank to a junior rank in a military context. Not all senior ranks in all military have the right to give an order to all lower ranks. George Breckenridge Davis, ''A Treatis ...

, binding instruction given by a senior rank to a junior rank in a military context ** General order, a published directive from a commander ** Standing order (disambiguation) *

Tactical formation Element: A group of soldiers A tactical formation (or order) is the arrangement or deployment of moving military forces such as infantry, cavalry, AFVs, military aircraft, or naval vessels. Formations were found in tribal societies such as the ...

, an arrangement or deployment of moving military forces

Philosophy

* Order (logic), a property used to characterize logical systems *

Natural order (philosophy) In philosophy, the natural order is the moral source from which natural law seeks to derive its authority. Natural order encompasses the natural relations of beings to one another in the absence of law, which natural law attempts to reinforce ...

, the moral source from which natural law seeks to derive its authority

Religion

Ecclesiastical decoration An ecclesiastical decoration is an order or a decoration conferred by a head of a church. Catholic ecclesiastical decorations Orders, decorations, and medals of the Holy See Other Catholic distinctions Local ecclesiastical distinctions * J ...

, order or a decoration conferred by a head of a church * Holy orders, the rite or sacrament in which clergy are ordained * Monastic order, a religious way of life in which one renounces worldly pursuits to devote oneself fully to spiritual work * Order of Mass, an outline of a Mass celebration * Religious order, a community or organization set apart from the general society for devotion to a religious practice ** Religious order (Catholic), a religious order in the context of the Roman Catholic Church ***

Canon regular Canons regular are priests who live in community under a rule ( and canon in greek) and are generally organised into religious orders, differing from both secular canons and other forms of religious life, such as clerics regular, designated by a ...

, or canonical order, a class of religious orders for priests in the Catholic Church

Science and technology

Biology and healthcare

Order (biology) Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms an ...

, a classification of organisms by rank ** Order, in

phytosociology Phytosociology, also known as phytocoenology or simply plant sociology, is the study of groups of species of plant that are usually found together. Phytosociology aims to empirically describe the vegetative environment of a given territory. A spec ...

, an ecological grouping of plants, between alliance and class ** ''

Ordo naturalis In botany, the phrase ''ordo naturalis'', 'natural order', was once used for what today is a family. Its origins lie with Carl Linnaeus who used the phrase when he referred to natural groups of plants in his lesser-known work, particularly ''Philo ...

'' (natural order), an outdated rank in biology, equivalent to the modern rank of family * Order, in

medicine Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care pr ...

, refers to a formal request made by authorized health practitioners to carry out a specific clinical action concerning diagnosis or treatment

Computing

* Order of computation, the computational complexity in the analysis of algorithms ** Big O notation, notation describing limiting behavior *

Z-order Z-order is an ordering of overlapping two-dimensional objects, such as Window (computing), windows in a stacking window manager, shapes in a vector graphics editor, or objects in a 3D application.Foley, James, Andries van Dam, Steven Feiner, and ...

, which graphics cover up others on computer screens

Mathematics

* ''Order'' (journal), an academic journal on order theory * Order (mathematics), * Order, an arrangement of items in

sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is calle ...

* Order, the result of

enumeration An enumeration is a complete, ordered listing of all the items in a collection. The term is commonly used in mathematics and computer science to refer to a listing of all of the elements of a set. The precise requirements for an enumeration (fo ...

of a set of items * Order, a mathematical structure modeling sequenced items, dealt with in

order theory Order theory is a branch of mathematics that investigates the intuitive notion of order using binary relations. It provides a formal framework for describing statements such as "this is less than that" or "this precedes that". This article int ...

* Order of hierarchical complexity, quantified by the

model of hierarchical complexity The model of hierarchical complexity (MHC) is a framework for scoring how complex a behavior is, such as verbal reasoning or other cognitive tasks. It quantifies the order of hierarchical complexity of a task based on mathematical principles of how ...

, the ordinal complexity of tasks that are addressed * Ordered set, an ordered structure, in mathematics *

Ordinate In common usage, the abscissa refers to the (''x'') coordinate and the ordinate refers to the (''y'') coordinate of a standard two-dimensional graph. The distance of a point from the y-axis, scaled with the x-axis, is called abscissa or x c ...

in mathematics, the ''y'' element of an ordered pair (''x'', ''y'') *

Partially ordered set In mathematics, especially order theory, a partially ordered set (also poset) formalizes and generalizes the intuitive concept of an ordering, sequencing, or arrangement of the elements of a set. A poset consists of a set together with a bina ...

Complete partial order In mathematics, the phrase complete partial order is variously used to refer to at least three similar, but distinct, classes of partially ordered sets, characterized by particular completeness properties. Complete partial orders play a central rol ...

* Permutation, the act of arranging all the members of a set into some sequence or order *

Ranking A ranking is a relationship between a set of items such that, for any two items, the first is either "ranked higher than", "ranked lower than" or "ranked equal to" the second. In mathematics, this is known as a weak order or total preorder of ...

Stochastic ordering In probability theory and statistics, a stochastic order quantifies the concept of one random variable being "bigger" than another. These are usually partial orders, so that one random variable A may be neither stochastically greater than, less tha ...

of random variables or probability distributions

Physics

* Implicate and explicate order, ontological concepts for quantum theory *

Order and disorder (physics) In physics, the terms order and disorder designate the presence or absence of some symmetry or correlation in a many-particle system. In condensed matter physics, systems typically are ordered at low temperatures; upon heating, they undergo on ...

, measured by an order parameter or more generally by entropy * Order, optics, the category number of lighthouse

Fresnel lens A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the c ...

es, defining size and focal length *

Topological order In physics, topological order is a kind of order in the zero-temperature phase of matter (also known as quantum matter). Macroscopically, topological order is defined and described by robust ground state degeneracy and quantized non-Abelian ...

in quantum mechanics, an organized quantum state

Signal processing

First-order hold First-order hold (FOH) is a mathematical model of the practical reconstruction of sampled signals that could be done by a conventional digital-to-analog converter (DAC) and an analog circuit called an integrator. For FOH, the signal is reconstruct ...

, mathematical model of the practical reconstruction of sampled signals * Modulation order, the number of different symbols that can be sent using a given modulation * Polynomial order, of a

filter Filter, filtering or filters may refer to: Science and technology Computing * Filter (higher-order function), in functional programming * Filter (software), a computer program to process a data stream * Filter (video), a software component tha ...

transfer function

Other uses in science and technology

* ''ORDER'' (spacecraft), a space debris removal transport satellite *

Order (mouldings) An order refers to each of a series of mouldings most often found in Romanesque and Gothic Gothic or Gothics may refer to: People and languages *Goths or Gothic people, the ethnonym of a group of East Germanic tribes **Gothic language, an e ...

, each of a series of recessed arches and supports around a doorway or similar feature * Classical order, architectonic orders in architecture *

Collation Collation is the assembly of written information into a standard order. Many systems of collation are based on numerical order or alphabetical order, or extensions and combinations thereof. Collation is a fundamental element of most office filin ...

, the ordering of information **

Alphabetical order Alphabetical order is a system whereby character strings are placed in order based on the position of the characters in the conventional ordering of an alphabet. It is one of the methods of collation. In mathematics, a lexicographical order is t ...

, the ordering of letters *

Order of reaction In chemistry, the rate law or rate equation for a reaction is an equation that links the initial or forward reaction rate with the concentrations or pressures of the reactants and constant parameters (normally rate coefficients and partial react ...

, a concept of chemical kinetics * Stream order, used to define river networks based on a hierarchy of tributaries