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Adjective: necessary  'ne-su,se-ree [N. Amer], 'ne-su,se-ree or ne-su-s(u-)ree [Brit]
  1. Absolutely essential
    "Oxygen is necessary for human survival"
     
  2. Unavoidably determined by prior circumstances
    "the necessary consequences of one's actions"
Noun: necessary  'ne-su,se-ree [N. Amer], 'ne-su,se-ree or ne-su-s(u-)ree [Brit]
  1. Anything indispensable
    "Food and water are necessaries for survival";
    - necessity, essential, requirement, requisite

Derived forms: necessaries

See also: essential, incumbent, indispensable, inevitable, irremissible, necessity, needed, needful, obligatory, required, requisite

Type of: thing

Antonym: unnecessary

Encyclopedia: Necessary