Noun burnt sienna has 2 senses
  1. reddish brown, sepia, burnt sienna, Venetian red - a shade of brown with a tinge of red
    --1 is a kind of brown, brownness
    --1 has particulars: brick red; copper, copper color; Indian red
  2. burnt sienna - a reddish-brown pigment produced by roasting sienna
    --2 is a kind of
    sienna
,
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