"Weather Underground" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
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      "glosses": [
        "A far-left Marxist militant organization active from 1969 to 1977."
      ],
      "id": "en-Weather_Underground-en-name-jFIMYfBB",
      "links": [
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          "far-left",
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          "Marxist",
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      "raw_glosses": [
        "(US, historical) A far-left Marxist militant organization active from 1969 to 1977."
      ],
      "tags": [
        "US",
        "historical"
      ]
    }
  ],
  "word": "Weather Underground"
}

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    {
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  ],
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  "lang_code": "en",
  "pos": "name",
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    {
      "categories": [
        "American English",
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        "English lemmas",
        "English multiword terms",
        "English proper nouns",
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        "English uncountable nouns",
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      ],
      "glosses": [
        "A far-left Marxist militant organization active from 1969 to 1977."
      ],
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        "(US, historical) A far-left Marxist militant organization active from 1969 to 1977."
      ],
      "tags": [
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        "historical"
      ]
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  ],
  "word": "Weather Underground"
}