"50-gon" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "50",
        "3": "gon"
      },
      "expansion": "50 + -gon",
      "name": "suffix"
    }
  ],
  "etymology_text": "From 50 + -gon.",
  "forms": [
    {
      "form": "50-gons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "50-gon"
      },
      "expansion": "50-gon (plural 50-gons)",
      "name": "en-noun"
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  ],
  "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 numeronyms",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -gon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Fifty",
          "orig": "en:Fifty",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geometry",
          "orig": "en:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Polygons",
          "orig": "en:Polygons",
          "parents": [
            "Shapes",
            "Geometry",
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of pentacontagon: A 50-sided polygon."
      ],
      "id": "en-50-gon-en-noun-g1MlVmrJ",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "pentacontagon",
          "pentacontagon#English"
        ],
        [
          "50",
          "50"
        ],
        [
          "side",
          "side"
        ],
        [
          "polygon",
          "polygon"
        ]
      ],
      "raw_glosses": [
        "(geometry) Synonym of pentacontagon: A 50-sided polygon."
      ],
      "synonyms": [
        {
          "extra": "A 50-sided polygon",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "pentacontagon"
        }
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "50-gon"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "50",
        "3": "gon"
      },
      "expansion": "50 + -gon",
      "name": "suffix"
    }
  ],
  "etymology_text": "From 50 + -gon.",
  "forms": [
    {
      "form": "50-gons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "50-gon"
      },
      "expansion": "50-gon (plural 50-gons)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English numeronyms",
        "English terms spelled with numbers",
        "English terms suffixed with -gon",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Fifty",
        "en:Geometry",
        "en:Polygons"
      ],
      "glosses": [
        "Synonym of pentacontagon: A 50-sided polygon."
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "pentacontagon",
          "pentacontagon#English"
        ],
        [
          "50",
          "50"
        ],
        [
          "side",
          "side"
        ],
        [
          "polygon",
          "polygon"
        ]
      ],
      "raw_glosses": [
        "(geometry) Synonym of pentacontagon: A 50-sided polygon."
      ],
      "synonyms": [
        {
          "extra": "A 50-sided polygon",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "pentacontagon"
        }
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "50-gon"
}