"dummy it" meaning in English

{
  "forms": [
    {
      "form": "dummy its",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "dummy its",
        "head": "dummy it"
      },
      "expansion": "dummy it (plural dummy its)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English links with redundant target parameters",
          "parents": [
            "Links with redundant target parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms containing italics",
          "parents": [
            "Terms containing italics",
            "Terms by orthographic property",
            "Terms by lexical property"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with DISPLAYTITLE conflicts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The pronoun \"it\" used without any referent, serving only to satisfy rules of syntax."
      ],
      "id": "en-dummy_it-en-noun-QEukYhqf",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "referent",
          "referent"
        ]
      ],
      "raw_glosses": [
        "(grammar) The pronoun \"it\" used without any referent, serving only to satisfy rules of syntax."
      ],
      "related": [
        {
          "word": "dummy pronoun"
        },
        {
          "word": "weather it"
        }
      ],
      "synonyms": [
        {
          "word": "ambient it"
        },
        {
          "word": "empty it"
        }
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "dummy it"
}

{
  "forms": [
    {
      "form": "dummy its",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "dummy its",
        "head": "dummy it"
      },
      "expansion": "dummy it (plural dummy its)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "dummy pronoun"
    },
    {
      "word": "weather it"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English links with redundant target parameters",
        "English links with redundant wikilinks",
        "English multiword terms",
        "English nouns",
        "English terms containing italics",
        "Pages with 1 entry",
        "Pages with DISPLAYTITLE conflicts",
        "Pages with entries",
        "en:Grammar"
      ],
      "glosses": [
        "The pronoun \"it\" used without any referent, serving only to satisfy rules of syntax."
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "referent",
          "referent"
        ]
      ],
      "raw_glosses": [
        "(grammar) The pronoun \"it\" used without any referent, serving only to satisfy rules of syntax."
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "ambient it"
    },
    {
      "word": "empty it"
    }
  ],
  "word": "dummy it"
}