Noun topaz has 3 senses
  1. topaz, false topaz, common topaz - a yellow quartz
    --1 is a kind of quartz
  2. topaz - a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
    --2 is a kind of
    transparent gem; mineral
  3. tan, topaz - a light brown
    --3 is a kind of light brown
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