English

Pronunciation

Noun

1. Plural of order

Verb

1. third-person singular of order

Honors

• Order (decoration), medal or award

Religious, chivalric and fraternal

• Chivalric order, established since the 14th century
• Fraternal order
• Holy Orders, the rite or sacrament in which clergy are ordained
• Military order, established in the crusades
• Monastic order, established since circa 300 AD
• Religious order
• Order (organization), an organization of people united by a common fraternal bond or social aim
• Tariqa or Sufi Order
• A Cardassian military unit in the fictional Star Trek universe
• An Order of the Mishnah, the name given to a sub-division of the Mishnah, a major religious text

Legal, political and military

• Court order, made by a judge; a restraining order, for example, is a type of injunction
• Direct order
• Executive order, issued by the executive branch of government
• General order, a published directive from a commander
• Law and order (politics)
• Social order, referring to the conduct of society
• Standing order, a general order of indefinite duration, and similar ongoing rules in a parliament
• World order, including the concept of a world government

In economics and commerce

• Money order
• Order (business), an instruction from a customer to buy
• Order (exchange), customer's instruction to a stock broker
• Order of degrees in the Elliott wave principle

In science

• Order (biology), a rank between class and family, or a taxon at that rank
• Order of reaction, a concept of chemical kinetics
• Order (crystal lattice) an arrangement of composition, spin, magnetism, etc. in a crystal lattice.
• Order of hierarchical complexity, the ordinal complexity of tasks that are addressed
• Social order, a concept used in sociology, history and other social sciences
• Topological order, an organized quantum state
• An order parameter in physics has value 1 for complete order and value 0 for complete disorder
• The contrary of chaos, disorder (in the sense of randomness), or entropy
• A way of categorizing the size of lighthouse Fresnel lenses

In mathematics

Order in arithmetic, analysis and combinatorics

• Orders of approximation in Big O notation
• Orders of magnitude, a class of scale or magnitude of any amount
• Order of convergence, a measurement of convergence
• Order, or degree of a polynomial
• Order, or dimension of a matrix
• Order, or order of highest derivative, of a differential equation
• Order in the Josephus permutation
• Weak order of permutations
• Ordered selections and partitions of the twelvefold way in combinatorics
• Ordered set, a permutation, bijection or cyclic order
• Un-ordered subset or combination
• Ordered list, a tuple or sequence
• Long-range aperiodic order, in for instance pinwheel tiling
• Multiplicative order in modular arithmetic
• Z-order (curve), a space-filling curve
• List of order topics in mathematics

Order in fractals

• Complexor, or complex order in fractals
• Orders of construction in the Pythagoras tree
• Order of extension in Lakes of Wada
• Order of Rényi dimensions

Order in graphs

• Graph order, the number of nodes in a graph http://mathworld.wolfram.com/GraphOrder.html
• Ordered pair, including undirected and directed graphs
• Ordered triple, or mixed graph
• Glossary of graph theory

Order in mathematical theories

• Order (group theory), the cardinality of a group or period of an element
• Order (number theory)
  • Multiplicative partition, Unordered factorization of numbers
• Order in Ramsey theory, uniform structures in consequence to critical set cardinality
• Order (ring theory), an algebraic structure
• Order theory, which studies various binary relations known as orders
  • Dense order of rational and real numbers
  • Order topology, a topology of Total order for totally ordered sets
  • Partially ordered set, or poset
  • Total order, a generalization of the complete ordered field of real numbers
  • Glossary of order theory
• Set theory (music) encompasses ordered pitch and pitch classes (Musical set theory)
• Type theory encompasses: First-order logic, Second-order logic and Higher-order logic

In computer science

• Order is a description of complexity or scalability in computational complexity theory and Big O notation.
• Order (information processing), a measure of the number of objects or sub-systems in a system
• Ordered activities in Metamodeling
• ORDER BY clause in SQL
• Ordered or unordered data in Data synchronization
• Ordered list of names or words in HTML
• Canonical order, the order of elements that obeys a certain set of rules or specifications
• Z-order on computer screens

In electronics and telecommunications

• First-order hold in signal processing
• Modulation order, the number of different symbols that can be sent using a given modulation
• Way of categorizing Electronic filters by steepness, see Filter design and Elliptic filter

In architecture and urban planning

• Architectonic orders: see classical order
• Public order, a concept in urban planning

Miscellaneous

• Collation, the sequencing and ordering of text in alphabetical or lexicographical order
• Implicate and Explicate Order, as defined by David Bohm
• Orders (film), a 1974 film by Canadian filmmaker, Michel Brault

See also

• The Order (disambiguation)
• Collation (disambiguation)
• Ordinal
• Ordinate
• Ordination
• Coordination
• Subordinate