primary

Adjective
  1. Of first rank or importance or value;
    Direct and immediate rather than secondary (synset 301858102)
    "primary goals"; "a primary effect"; "primary sources"; "a primary interest"
    also:
    • essential - basic and fundamental
    • first - preceding all others in time or space or degree
    • original - being or productive of something fresh and unusual; or being as first made or thought of
    similar to:
    • capital - of primary importance
    • direct - being an immediate result or consequence
    • firsthand - received directly from a source
    • first-string - being a regular member of a team
    • original - (of e.g. information) not secondhand or by way of something intermediary
    • particular, special - first and most important
  2. Not derived from or reducible to something else;
    Basic (synset 300702966)
    "a primary instinct"
    similar to: underived - not derived; primary or simple
  3. Most important element (synset 301280536)
    "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets"; "the master bedroom"; "a master switch"
    similar to: important, of import - of great significance or value
    same as: chief, main, master, principal
  4. Of or being the essential or basic part (synset 301862151)
    "an elementary need for love and nurturing"; "a basal reader"
    similar to: basic - pertaining to or constituting a base or basis
    same as: basal, elemental, elementary
Noun
  1. A preliminary election where delegates or nominees are chosen (synset 100183420)
    is a type of: election - a vote to select the winner of a position or political office
    subtypes: direct primary - a primary where voters directly select the candidates who will run for office
    same as: primary election
  2. One of the main flight feathers projecting along the outer edge of a bird's wing (synset 102471711)
    is a type of: flight feather, pinion, quill, quill feather - any of the larger wing or tail feathers of a bird
    same as: primary feather, primary quill
  3. (astronomy) a celestial body (especially a star) relative to other objects in orbit around it (synset 109421644)
    referred to in: astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
    is a type of: celestial body, heavenly body - natural objects visible in the sky
  4. Coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit (synset 104008987)
    "current through the primary coil induces current in the secondary coil"
    is a type of: coil - reactor consisting of a spiral of insulated wire that introduces inductance into a circuit
    is a part of: transformer - an electrical device by which alternating current of one voltage is changed to another voltage
    same as: primary coil, primary winding

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