"quatre-vingts" meaning in French

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "lou",
            "2": "katre-vin"
          },
          "expansion": "Louisiana Creole: katre-vin",
          "name": "desc"
        }
      ],
      "text": "Louisiana Creole: katre-vin"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "quatre",
        "3": "",
        "4": "four"
      },
      "expansion": "quatre (“four”)",
      "name": "m"
    },
    {
      "args": {
        "1": "fr",
        "2": "vingt",
        "3": "",
        "4": "twenty"
      },
      "expansion": "vingt (“twenty”)",
      "name": "m"
    },
    {
      "args": {
        "1": "fr",
        "2": "cel",
        "3": "-"
      },
      "expansion": "Celtic",
      "name": "uder"
    },
    {
      "args": {
        "1": "ga",
        "2": "fichead"
      },
      "expansion": "Irish fichead",
      "name": "cog"
    },
    {
      "args": {
        "1": "la",
        "2": "octōgintā"
      },
      "expansion": "octōgintā",
      "name": "m"
    }
  ],
  "etymology_text": "From quatre (“four”) and vingt (“twenty”), both of which are derived from Latin. The vigesimal pattern of expressing 80 as 4×20, however, is of Celtic origin; see, for example, Irish fichead. (The Latin for 80 is octōgintā.).",
  "lang": "French",
  "lang_code": "fr",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "French cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "eighty, 80"
      ],
      "id": "en-quatre-vingts-fr-num-1KSWYxaF",
      "links": [
        [
          "eighty",
          "eighty"
        ],
        [
          "80",
          "80"
        ]
      ],
      "related": [
        {
          "word": "octante"
        },
        {
          "word": "huitante"
        },
        {
          "word": "quatre-vingt"
        }
      ],
      "synonyms": [
        {
          "word": "huitante"
        },
        {
          "word": "octante"
        }
      ],
      "tags": [
        "invariable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ka.tʁə.vɛ̃/"
    },
    {
      "audio": "Fr-quatre-vingts-2.oga",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/24/Fr-quatre-vingts-2.oga/Fr-quatre-vingts-2.oga.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/24/Fr-quatre-vingts-2.oga",
      "text": "Audio"
    }
  ],
  "word": "quatre-vingts"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "lou",
            "2": "katre-vin"
          },
          "expansion": "Louisiana Creole: katre-vin",
          "name": "desc"
        }
      ],
      "text": "Louisiana Creole: katre-vin"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "quatre",
        "3": "",
        "4": "four"
      },
      "expansion": "quatre (“four”)",
      "name": "m"
    },
    {
      "args": {
        "1": "fr",
        "2": "vingt",
        "3": "",
        "4": "twenty"
      },
      "expansion": "vingt (“twenty”)",
      "name": "m"
    },
    {
      "args": {
        "1": "fr",
        "2": "cel",
        "3": "-"
      },
      "expansion": "Celtic",
      "name": "uder"
    },
    {
      "args": {
        "1": "ga",
        "2": "fichead"
      },
      "expansion": "Irish fichead",
      "name": "cog"
    },
    {
      "args": {
        "1": "la",
        "2": "octōgintā"
      },
      "expansion": "octōgintā",
      "name": "m"
    }
  ],
  "etymology_text": "From quatre (“four”) and vingt (“twenty”), both of which are derived from Latin. The vigesimal pattern of expressing 80 as 4×20, however, is of Celtic origin; see, for example, Irish fichead. (The Latin for 80 is octōgintā.).",
  "lang": "French",
  "lang_code": "fr",
  "pos": "num",
  "related": [
    {
      "word": "octante"
    },
    {
      "word": "huitante"
    },
    {
      "word": "quatre-vingt"
    }
  ],
  "senses": [
    {
      "categories": [
        "French 3-syllable words",
        "French cardinal numbers",
        "French entries with incorrect language header",
        "French indeclinable numerals",
        "French lemmas",
        "French multiword terms",
        "French numerals",
        "French terms derived from Celtic languages",
        "French terms with IPA pronunciation",
        "French terms with audio links",
        "French undefined derivations"
      ],
      "glosses": [
        "eighty, 80"
      ],
      "links": [
        [
          "eighty",
          "eighty"
        ],
        [
          "80",
          "80"
        ]
      ],
      "synonyms": [
        {
          "word": "huitante"
        },
        {
          "word": "octante"
        }
      ],
      "tags": [
        "invariable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ka.tʁə.vɛ̃/"
    },
    {
      "audio": "Fr-quatre-vingts-2.oga",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/24/Fr-quatre-vingts-2.oga/Fr-quatre-vingts-2.oga.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/24/Fr-quatre-vingts-2.oga",
      "text": "Audio"
    }
  ],
  "word": "quatre-vingts"
}