"ligne de vie" meaning in French

{
  "forms": [
    {
      "form": "lignes de vie",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "ligne de vie f (plural lignes de vie)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "lifeline (fall protection safety device)"
      ],
      "id": "en-ligne_de_vie-fr-noun-Vm1He4AD",
      "links": [
        [
          "lifeline",
          "lifeline"
        ]
      ],
      "tags": [
        "feminine"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Palmistry",
          "orig": "fr:Palmistry",
          "parents": [
            "Divination",
            "Occult",
            "Forteana",
            "Supernatural",
            "Pseudoscience",
            "Folklore",
            "Sciences",
            "Culture",
            "All topics",
            "Society",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "2 98",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "lifeline, line of life (line on the palm of the hand, curving about the base of the thumb, supposed to indicate, by its form or position, the length of a person's life)"
      ],
      "id": "en-ligne_de_vie-fr-noun-400ne6sL",
      "links": [
        [
          "palmistry",
          "palmistry"
        ],
        [
          "lifeline",
          "lifeline"
        ],
        [
          "line of life",
          "line of life"
        ]
      ],
      "qualifier": "palmistry",
      "raw_glosses": [
        "(palmistry) lifeline, line of life (line on the palm of the hand, curving about the base of the thumb, supposed to indicate, by its form or position, the length of a person's life)"
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/liɲ də vi/"
    },
    {
      "audio": "LL-Q150 (fra)-T. Le Berre-ligne de vie.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/20/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/20/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav.ogg"
    }
  ],
  "word": "ligne de vie"
}

{
  "categories": [
    "French countable nouns",
    "French entries with incorrect language header",
    "French feminine nouns",
    "French lemmas",
    "French multiword terms",
    "French nouns",
    "French nouns with red links in their headword lines",
    "French terms with IPA pronunciation",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "lignes de vie",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "ligne de vie f (plural lignes de vie)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "lifeline (fall protection safety device)"
      ],
      "links": [
        [
          "lifeline",
          "lifeline"
        ]
      ],
      "tags": [
        "feminine"
      ]
    },
    {
      "categories": [
        "fr:Palmistry"
      ],
      "glosses": [
        "lifeline, line of life (line on the palm of the hand, curving about the base of the thumb, supposed to indicate, by its form or position, the length of a person's life)"
      ],
      "links": [
        [
          "palmistry",
          "palmistry"
        ],
        [
          "lifeline",
          "lifeline"
        ],
        [
          "line of life",
          "line of life"
        ]
      ],
      "qualifier": "palmistry",
      "raw_glosses": [
        "(palmistry) lifeline, line of life (line on the palm of the hand, curving about the base of the thumb, supposed to indicate, by its form or position, the length of a person's life)"
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/liɲ də vi/"
    },
    {
      "audio": "LL-Q150 (fra)-T. Le Berre-ligne de vie.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/20/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/20/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav/LL-Q150_%28fra%29-T._Le_Berre-ligne_de_vie.wav.ogg"
    }
  ],
  "word": "ligne de vie"
}