"Old Firm" meaning in English

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  "lang_code": "en",
  "pos": "name",
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        {
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          "langcode": "en",
          "name": "Football (soccer)",
          "orig": "en:Football (soccer)",
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      "glosses": [
        "Collectively, the two Scottish football teams Rangers and Celtic, both based in Glasgow, which are the most successful teams in Scotland. They have a fierce and long-standing rivalry."
      ],
      "id": "en-Old_Firm-en-name-FSIM1i9m",
      "links": [
        [
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          "soccer"
        ],
        [
          "Glasgow",
          "Glasgow"
        ],
        [
          "rivalry",
          "rivalry"
        ]
      ],
      "raw_glosses": [
        "(soccer) Collectively, the two Scottish football teams Rangers and Celtic, both based in Glasgow, which are the most successful teams in Scotland. They have a fierce and long-standing rivalry."
      ],
      "topics": [
        "ball-games",
        "games",
        "hobbies",
        "lifestyle",
        "soccer",
        "sports"
      ],
      "wikipedia": [
        "Old Firm"
      ]
    }
  ],
  "word": "Old Firm"
}

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  "lang": "English",
  "lang_code": "en",
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        "Collectively, the two Scottish football teams Rangers and Celtic, both based in Glasgow, which are the most successful teams in Scotland. They have a fierce and long-standing rivalry."
      ],
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        [
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          "soccer"
        ],
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          "Glasgow",
          "Glasgow"
        ],
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        ]
      ],
      "raw_glosses": [
        "(soccer) Collectively, the two Scottish football teams Rangers and Celtic, both based in Glasgow, which are the most successful teams in Scotland. They have a fierce and long-standing rivalry."
      ],
      "topics": [
        "ball-games",
        "games",
        "hobbies",
        "lifestyle",
        "soccer",
        "sports"
      ],
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      ]
    }
  ],
  "word": "Old Firm"
}