spar - definition and synonyms

noun [countable] 

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  1. 1
    a thick strong pole that supports something

    a roof spar

    1. a.
      a thick pole that supports the sails of a boat
    2. b.
      a strong pole that supports the structure in the wing of a plane
  2. 2
    a long thin piece of rock or a mineral

    a calcite spar