"立役者" meaning in Japanese

{
  "forms": [
    {
      "form": "立役者",
      "ruby": [
        [
          "立",
          "たて"
        ],
        [
          "役",
          "やく"
        ],
        [
          "者",
          "しゃ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "tateyakusha",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "tateyakusya",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "たてやくしや",
      "roman": "tateyakusya",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "たてやくしゃ",
        "hhira": "たてやくしや"
      },
      "expansion": "立(たて)役(やく)者(しゃ) • (tateyakusha) ^(←たてやくしや (tateyakusya)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "Japanese terms with 3 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "100 0",
          "kind": "topical",
          "langcode": "ja",
          "name": "People",
          "orig": "ja:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "primary performer"
      ],
      "id": "en-立役者-ja-noun-wYTLsUMU",
      "links": [
        [
          "primary",
          "primary"
        ],
        [
          "performer",
          "performer"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "Japanese terms with 3 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "18 82",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "7 93",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "central figure (person)"
      ],
      "id": "en-立役者-ja-noun-YfS0hs64",
      "links": [
        [
          "central",
          "central"
        ],
        [
          "figure",
          "figure"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "たてやくしゃ"
    },
    {
      "ipa": "[ta̠te̞ja̠kɯ̟ɕa̠]"
    }
  ],
  "word": "立役者"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms spelled with first grade kanji",
    "Japanese terms spelled with third grade kanji",
    "Japanese terms with 3 kanji",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with redundant sortkeys",
    "Pages with 1 entry",
    "Pages with entries",
    "ja:People"
  ],
  "forms": [
    {
      "form": "立役者",
      "ruby": [
        [
          "立",
          "たて"
        ],
        [
          "役",
          "やく"
        ],
        [
          "者",
          "しゃ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "tateyakusha",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "tateyakusya",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "たてやくしや",
      "roman": "tateyakusya",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "たてやくしゃ",
        "hhira": "たてやくしや"
      },
      "expansion": "立(たて)役(やく)者(しゃ) • (tateyakusha) ^(←たてやくしや (tateyakusya)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "primary performer"
      ],
      "links": [
        [
          "primary",
          "primary"
        ],
        [
          "performer",
          "performer"
        ]
      ]
    },
    {
      "glosses": [
        "central figure (person)"
      ],
      "links": [
        [
          "central",
          "central"
        ],
        [
          "figure",
          "figure"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "たてやくしゃ"
    },
    {
      "ipa": "[ta̠te̞ja̠kɯ̟ɕa̠]"
    }
  ],
  "word": "立役者"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "立役者"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "立役者",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "立役者"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "立役者",
  "trace": ""
}