"grass-roots" meaning in English

{
  "head_templates": [
    {
      "args": {
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      },
      "expansion": "grass-roots (not comparable)",
      "name": "en-adj"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "grassroots"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012 November 7, Matt Bai, “Winning a Second Term, Obama Will Confront Familiar Headwinds”, in New York Times",
          "text": "Another Bush — George W.’s brother Jeb — is likely to be a big player in the Republican Party’s future. And the most powerful grass-roots force in America, the Tea Party, derives its energy mostly from the same older, white voters who once vilified Bill Clinton.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative spelling of grassroots"
      ],
      "id": "en-grass-roots-en-adj--kzGb5u6",
      "links": [
        [
          "grassroots",
          "grassroots#English"
        ]
      ],
      "related": [
        {
          "word": "grass roots"
        }
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable"
      ]
    }
  ],
  "word": "grass-roots"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "grass-roots (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "grass roots"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "grassroots"
        }
      ],
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English uncomparable adjectives"
      ],
      "examples": [
        {
          "ref": "2012 November 7, Matt Bai, “Winning a Second Term, Obama Will Confront Familiar Headwinds”, in New York Times",
          "text": "Another Bush — George W.’s brother Jeb — is likely to be a big player in the Republican Party’s future. And the most powerful grass-roots force in America, the Tea Party, derives its energy mostly from the same older, white voters who once vilified Bill Clinton.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative spelling of grassroots"
      ],
      "links": [
        [
          "grassroots",
          "grassroots#English"
        ]
      ],
      "tags": [
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        "alternative",
        "not-comparable"
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  ],
  "word": "grass-roots"
}