"gunmetal-grey" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "gunmetal-grey (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "parents": [
            "Entries with topic categories using raw markup",
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          "source": "w"
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          "kind": "other",
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          "parents": [
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Greys",
          "orig": "en:Greys",
          "parents": [
            "Colors",
            "Light",
            "Vision",
            "Energy",
            "Senses",
            "Nature",
            "Perception",
            "All topics",
            "Body",
            "Fundamental",
            "Human"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2005, Emily Ellison, Chuck Perry, Liars and Legends, Thomas Nelson",
          "text": "The Altamaha-ha, as the serpent has been named, is said to be from twelve to twenty feet long, about two feet in diameter, and gunmetal gray on top with a creamy underside. Most descriptions suggest a creature that is part eel, part alligator, ...",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Of a dark grey colour with a tint of blue."
      ],
      "id": "en-gunmetal-grey-en-adj-11J-mIc~",
      "links": [
        [
          "dark",
          "dark"
        ],
        [
          "grey",
          "grey#Noun"
        ],
        [
          "colour",
          "colour"
        ],
        [
          "tint",
          "tint#Noun"
        ],
        [
          "blue",
          "blue#Noun"
        ]
      ],
      "related": [
        {
          "tags": [
            "noun"
          ],
          "word": "gunmetal grey"
        }
      ],
      "synonyms": [
        {
          "tags": [
            "US"
          ],
          "word": "gunmetal-gray"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "gunmetal-grey"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "gunmetal-grey (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "tags": [
        "noun"
      ],
      "word": "gunmetal grey"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
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        "English terms with quotations",
        "English uncomparable adjectives",
        "en:Greys"
      ],
      "examples": [
        {
          "ref": "2005, Emily Ellison, Chuck Perry, Liars and Legends, Thomas Nelson",
          "text": "The Altamaha-ha, as the serpent has been named, is said to be from twelve to twenty feet long, about two feet in diameter, and gunmetal gray on top with a creamy underside. Most descriptions suggest a creature that is part eel, part alligator, ...",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Of a dark grey colour with a tint of blue."
      ],
      "links": [
        [
          "dark",
          "dark"
        ],
        [
          "grey",
          "grey#Noun"
        ],
        [
          "colour",
          "colour"
        ],
        [
          "tint",
          "tint#Noun"
        ],
        [
          "blue",
          "blue#Noun"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "US"
      ],
      "word": "gunmetal-gray"
    }
  ],
  "word": "gunmetal-grey"
}