"iron buff" meaning in English

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      "expansion": "iron buff",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Iron",
          "orig": "en:Iron",
          "parents": [
            "Transition metals",
            "Chemical elements",
            "Metals",
            "Matter",
            "Metallurgy",
            "Chemistry",
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            "Sciences",
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            "Fundamental"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pigments",
          "orig": "en:Pigments",
          "parents": [
            "Colors",
            "Light",
            "Vision",
            "Energy",
            "Senses",
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            "Body",
            "Fundamental",
            "Human"
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          "kind": "topical",
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          "name": "Textiles",
          "orig": "en:Textiles",
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            "Materials",
            "Manufacturing",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
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          "source": "w"
        }
      ],
      "glosses": [
        "A yellow ancient artificial iron oxide made by oxidating iron in vinegar, one of the oldest man-made pigments, often used in staining textiles."
      ],
      "id": "en-iron_buff-en-noun-ylXxxH7B",
      "links": [
        [
          "yellow",
          "yellow"
        ],
        [
          "iron oxide",
          "iron oxide"
        ],
        [
          "iron",
          "iron"
        ],
        [
          "vinegar",
          "vinegar"
        ],
        [
          "pigments",
          "pigments"
        ],
        [
          "staining",
          "staining"
        ],
        [
          "textiles",
          "textiles"
        ]
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "word": "jaune d’oxide de fer hydraté"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "Rostgelb"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Translations",
          "word": "giallo di ossido di ferro"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "Translations",
          "word": "ferro afinado"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "amarillo de hierro"
        }
      ]
    }
  ],
  "word": "iron buff"
}

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      "expansion": "iron buff",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Iron",
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        "en:Textiles"
      ],
      "glosses": [
        "A yellow ancient artificial iron oxide made by oxidating iron in vinegar, one of the oldest man-made pigments, often used in staining textiles."
      ],
      "links": [
        [
          "yellow",
          "yellow"
        ],
        [
          "iron oxide",
          "iron oxide"
        ],
        [
          "iron",
          "iron"
        ],
        [
          "vinegar",
          "vinegar"
        ],
        [
          "pigments",
          "pigments"
        ],
        [
          "staining",
          "staining"
        ],
        [
          "textiles",
          "textiles"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "word": "jaune d’oxide de fer hydraté"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "Rostgelb"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Translations",
      "word": "giallo di ossido di ferro"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "Translations",
      "word": "ferro afinado"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "amarillo de hierro"
    }
  ],
  "word": "iron buff"
}