"ancienne école" meaning in French

{
  "forms": [
    {
      "form": "l’ ancienne école",
      "tags": [
        "canonical",
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "-",
        "head": "l'ancienne école"
      },
      "expansion": "l’ancienne école f (uncountable)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "être de l’ancienne école",
          "type": "example"
        }
      ],
      "glosses": [
        "Synonym of vieille école"
      ],
      "id": "en-ancienne_école-fr-noun-Qy9BUHVr",
      "links": [
        [
          "vieille école",
          "vieille école#French"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "vieille école"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɑ̃.sjɛn e.kɔl/"
    }
  ],
  "word": "ancienne école"
}

{
  "forms": [
    {
      "form": "l’ ancienne école",
      "tags": [
        "canonical",
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "-",
        "head": "l'ancienne école"
      },
      "expansion": "l’ancienne école f (uncountable)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "French terms with usage examples",
        "French uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "Requests for translations of French usage examples"
      ],
      "examples": [
        {
          "text": "être de l’ancienne école",
          "type": "example"
        }
      ],
      "glosses": [
        "Synonym of vieille école"
      ],
      "links": [
        [
          "vieille école",
          "vieille école#French"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "vieille école"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɑ̃.sjɛn e.kɔl/"
    }
  ],
  "word": "ancienne école"
}