"puits perdu" meaning in French

{
  "forms": [
    {
      "form": "puits perdus",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "puits perdu m (plural puits perdus)",
      "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": [
        {
          "english": "Shopkeepers of the Divo marketplace discovered early on Saturday the 11ᵗʰ of April, the body of an infant around four years old in a cesspit.",
          "ref": "2019 December 16, Soumaïla Bakayoko, Divo: Un enfant de 4 ans retrouvé sans vie au fond d'un puits perdu dans un marché:",
          "text": "Les commerçants et commerçantes du grand marché de Divo ont découvert tôt le samedi 11 avril, le corps d’un enfant âgé d’environ quatre ans dans un puits perdu.",
          "type": "quote"
        }
      ],
      "glosses": [
        "a hole dug for rain or waste water; a dry well"
      ],
      "id": "en-puits_perdu-fr-noun-3anwY~Yj",
      "links": [
        [
          "rain",
          "rain water"
        ],
        [
          "waste water",
          "waste water"
        ],
        [
          "dry well",
          "dry well"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pɥi pɛʁ.dy/"
    }
  ],
  "word": "puits perdu"
}

{
  "forms": [
    {
      "form": "puits perdus",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "puits perdu m (plural puits perdus)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French nouns with red links in their headword lines",
        "French terms with IPA pronunciation",
        "French terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Shopkeepers of the Divo marketplace discovered early on Saturday the 11ᵗʰ of April, the body of an infant around four years old in a cesspit.",
          "ref": "2019 December 16, Soumaïla Bakayoko, Divo: Un enfant de 4 ans retrouvé sans vie au fond d'un puits perdu dans un marché:",
          "text": "Les commerçants et commerçantes du grand marché de Divo ont découvert tôt le samedi 11 avril, le corps d’un enfant âgé d’environ quatre ans dans un puits perdu.",
          "type": "quote"
        }
      ],
      "glosses": [
        "a hole dug for rain or waste water; a dry well"
      ],
      "links": [
        [
          "rain",
          "rain water"
        ],
        [
          "waste water",
          "waste water"
        ],
        [
          "dry well",
          "dry well"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pɥi pɛʁ.dy/"
    }
  ],
  "word": "puits perdu"
}