Order vs Category - What's the difference?

order | category | Synonyms |

Order is a synonym of category.

As nouns the difference between order and category

is that order is (uncountable) arrangement, disposition, sequence while category is a group, often named or numbered, to which items are assigned based on similarity or defined criteria.

As a verb order

is to set in some sort of order.



(wikipedia order)

Alternative forms

* ordre (obsolete)


  • (uncountable) Arrangement, disposition, sequence.
  • (uncountable) The state of being well arranged.
  • The house is in order'''; the machinery is out of '''order .
  • Conformity with law or decorum; freedom from disturbance; general tranquillity; public quiet.
  • to preserve order in a community or an assembly
  • (countable) A command.
  • * {{quote-book, year=1907, author=
  • , title=The Dust of Conflict , chapter=30 citation , passage=It was by his order the shattered leading company flung itself into the houses when the Sin Verguenza were met by an enfilading volley as they reeled into the calle.}}
  • (countable) A request for some product or service; a commission to purchase, sell, or supply goods.
  • * {{quote-magazine, title=An internet of airborne things, date=2012-12-01, volume=405, issue=8813, page=3 (Technology Quarterly), magazine=(The Economist) citation
  • , passage=A farmer could place an order for a new tractor part by text message and pay for it by mobile money-transfer.}}
  • (countable) A group of religious adherents, especially monks or nuns, set apart within their religion by adherence to a particular rule or set of principles; as, the Jesuit Order.
  • (countable) An association of knights; as, the Order of the Garter, the Order of the Bath.
  • any group of people with common interests.
  • (countable) A decoration, awarded by a government, a dynastic house, or a religious body to an individual, usually for distinguished service to a nation or to humanity.
  • (countable, biology, taxonomy) A rank in the classification of organisms, below class and above family; a taxon at that rank.
  • * {{quote-magazine, year=2013, month=May-June, author= Katie L. Burke
  • , title= In the News , volume=101, issue=3, page=193, magazine=(American Scientist) , passage=Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents.}}
  • A number of things or persons arranged in a fixed or suitable place, or relative position; a rank; a row; a grade; especially, a rank or class in society; a distinct character, kind, or sort.
  • the higher or lower orders of society
    talent of a high order
  • * Jeremy Taylor
  • They are in equal order to their several ends.
  • * Granville
  • Various orders various ensigns bear.
  • * Hawthorne
  • which, to his order of mind, must have seemed little short of crime.
  • An ecclesiastical grade or rank, as of deacon, priest, or bishop; the office of the Christian ministry; often used in the plural.
  • to take orders''', or to take '''holy orders , that is, to enter some grade of the ministry
  • (architecture) The disposition of a column and its component parts, and of the entablature resting upon it, in classical architecture; hence (as the column and entablature are the characteristic features of classical architecture) a style or manner of architectural designing.
  • (cricket) The sequence in which a side’s batsmen bat; the batting order.
  • (electronics) a power of polynomial function in an electronic circuit’s block, such as a filter, an amplifier, etc.
  • * a 3-stage cascade of a 2nd-order bandpass Butterworth filter.
  • (chemistry) The overall power of the rate law of a chemical reaction, expressed as a polynomial function of concentrations of reactants and products.
  • (mathematics) The cardinality, or number of elements in a set or related structure.
  • (graph theory) The number of vertices in a graph.
  • (order theory) A partially ordered set.
  • (order theory) The relation on a partially ordered set that determines that it in fact a partially ordered set.
  • (mathematics) The sum of the exponents on the variables in a monomial, or the highest such among all monomials in a polynomial.
  • Quotations

    * 1611 — 1:1 *: Forasmuch as many have taken in hand to set forth in order a declaration of those things which are most surely believed among us... * Donald Knuth. Volume 3: ''Sorting and Searching, Addison-Wesley, 1973, chapter 8: *: Since only two of our tape drives were in working order', I was '''ordered''' to '''order''' more tape units in short '''order''', in '''order''' to '''order''' the data several ' orders of magnitude faster.


    * chaos

    Derived terms

    * alphabetical order * antisocial behaviour order * Anton Piller order * apple-pie order * back-to-work order * bottom order * court order * doctor's orders * Doric order * executive order * first order stream * fraternal birth order * gagging order * Groceries Order * in order / in order to * in short order * infra-order * interim order * last orders * law-and-order * Mary Bell order * mendicant order * middle order * moral order * New World Order * on the order of * order in council * Order of Australia * order of magnitude * order of operations * order of precedence * order of the day * order stream * out of order * partial order * pecking order * place an order * put one's house in order * purchase order * religious order * restraining order * second order stream * short order * standing order * stop-loss order * superorder * tall order * third order stream * total order * well-order * working order * z-order

    See also



    (en verb)
  • To set in some sort of order.
  • To arrange, set in proper order.
  • To issue a command to.
  • to order troops to advance
  • To request some product or service; to secure by placing an order.
  • to order groceries
  • To admit to holy orders; to ordain; to receive into the ranks of the ministry.
  • * Book of Common Prayer
  • persons presented to be ordered deacons
    * (arrange into some sort of order) sort, rank

    Derived terms

    * just what the doctor ordered * made-to-order * mail-order * order of magnitude * order out * well-order





  • A group, often named or numbered, to which items are assigned based on similarity or defined criteria.
  • *
  • The traditional way of describing the similarities and differences between constituents is to say that they belong to categories'' of various types. Thus, words like ''boy'', ''girl'', ''man'', ''woman'', etc. are traditionally said to belong to the category''' of Nouns, whereas words like ''a'', ''the'', ''this'', and ''that'' are traditionally said to belong to the ' category of Determiners.
    This steep and dangerous climb belongs to the most difficult category .
    I wouldn't put this book in the same category as the author's first novel.
  • (mathematics) A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative.
  • One well-known category has sets as objects and functions as arrows.
    Just as a monoid consists of an underlying set with a binary operation "on top of it" which is closed, associative and with an identity, a category consists of an underlying digraph with an arrow composition operation "on top of it" which is transitively closed, associative, and with an identity at each object. In fact, a category's composition operation, when restricted to a single one of its objects, turns that object's set of arrows (which would all be loops) into a monoid.


    * (group to which items are assigned) class, family, genus, group, kingdom, order, phylum, race, tribe, type * See also

    Derived terms

    * category mistake * category theory * conceptual category * perceptual category * subcategory * supercategory