"seins" meaning in Allemand

{
  "categories": [
    {
      "kind": "other",
      "name": "Adjectifs possessifs en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Lemmes en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Allemand",
      "orig": "allemand",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Allemand",
  "lang_code": "de",
  "pos": "adj",
  "pos_title": "Adjectif possessif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en allemand",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Gehört dieses Buch Detlef? -- Nein, es ist nicht seins.",
          "translation": "Ce livre appartient-il à Detlef ? -- Non, ce n'est pas le sien."
        }
      ],
      "glosses": [
        "Le sien, (nominatif et accusatif neutre singulier de sein pour l'usage non attributif)."
      ],
      "id": "fr-seins-de-adj-t5qktH9y"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈzaɪ̯ns\\"
    },
    {
      "audio": "De-seins.ogg",
      "ipa": "ˈzaɪ̯ns",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/6f/De-seins.ogg/De-seins.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/De-seins.ogg",
      "raw_tags": [
        "Berlin"
      ]
    }
  ],
  "tags": [
    "possessive"
  ],
  "word": "seins"
}

{
  "categories": [
    "Adjectifs possessifs en allemand",
    "Lemmes en allemand",
    "allemand"
  ],
  "lang": "Allemand",
  "lang_code": "de",
  "pos": "adj",
  "pos_title": "Adjectif possessif",
  "senses": [
    {
      "categories": [
        "Exemples en allemand"
      ],
      "examples": [
        {
          "text": "Gehört dieses Buch Detlef? -- Nein, es ist nicht seins.",
          "translation": "Ce livre appartient-il à Detlef ? -- Non, ce n'est pas le sien."
        }
      ],
      "glosses": [
        "Le sien, (nominatif et accusatif neutre singulier de sein pour l'usage non attributif)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈzaɪ̯ns\\"
    },
    {
      "audio": "De-seins.ogg",
      "ipa": "ˈzaɪ̯ns",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/6f/De-seins.ogg/De-seins.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/De-seins.ogg",
      "raw_tags": [
        "Berlin"
      ]
    }
  ],
  "tags": [
    "possessive"
  ],
  "word": "seins"
}