"guerre d'attrition" meaning in French

{
  "forms": [
    {
      "form": "guerre d’ attrition",
      "tags": [
        "canonical",
        "feminine"
      ]
    },
    {
      "form": "guerres d’attrition",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "guerre d’attrition f (plural guerres d’attrition)",
      "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": "topical",
          "langcode": "fr",
          "name": "War",
          "orig": "fr:War",
          "parents": [
            "Conflict",
            "Military",
            "Violence",
            "Human behaviour",
            "Society",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "war of attrition"
      ],
      "id": "en-guerre_d'attrition-fr-noun-KWqnkbeq",
      "links": [
        [
          "war of attrition",
          "war of attrition"
        ]
      ],
      "synonyms": [
        {
          "word": "guerre d'usure"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɡɛʁ d‿a.tʁi.sjɔ̃/"
    }
  ],
  "word": "guerre d'attrition"
}

{
  "forms": [
    {
      "form": "guerre d’ attrition",
      "tags": [
        "canonical",
        "feminine"
      ]
    },
    {
      "form": "guerres d’attrition",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "guerre d’attrition f (plural guerres d’attrition)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "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",
        "fr:War"
      ],
      "glosses": [
        "war of attrition"
      ],
      "links": [
        [
          "war of attrition",
          "war of attrition"
        ]
      ],
      "synonyms": [
        {
          "word": "guerre d'usure"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɡɛʁ d‿a.tʁi.sjɔ̃/"
    }
  ],
  "word": "guerre d'attrition"
}