Definition of uniform noun from the Oxford Advanced Learner's Dictionary

        

    uniform

     noun
    noun
    BrE BrE//ˈjuːnɪfɔːm//
     
    ; NAmE NAmE//ˈjuːnɪfɔːrm//
     
    School life
     
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  1. 1  [countable, uncountable] the special set of clothes worn by all members of an organization or a group at work, or by children at school a military/police/nurse’s uniform soldiers in uniform The hat is part of the school uniform. Do you have to wear uniform? See related entries: School life
  2. 2[countable, usually singular, uncountable] (North American English) (British English strip) the clothes worn by the members of a sports team when they are playing a striped baseball uniform the team’s away uniform (= that they use when playing games away from home)
  3. 3[singular, uncountable] the type of clothes that a person or group usually wears my standard teenage uniform of sweatshirt and jeans the traditional banker’s uniform
  4. Word Origin mid 16th cent. (as an adjective): from French uniforme or Latin uniformis (see uni-, form). The current sense of the noun dates from the mid 18th cent.Extra examples A man in a uniform stopped us entering. She was wearing the regulation uniform of tunic, hat and tie. The limousine was driven by a chauffeur in uniform. They wore the standard uniform of the American office worker. They wore the standard uniform of the well-to-do American out of office hours. a man in the full dress uniform of the Marines a soldier out of uniform men and women who don military uniform to defend their country
See the Oxford Advanced American Dictionary entry: uniform