"Aar" meaning in French

{
  "head_templates": [
    {
      "args": {
        "g": "f"
      },
      "expansion": "Aar f",
      "name": "fr-proper noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "fr",
          "name": "Rivers",
          "orig": "fr:Rivers",
          "parents": [
            "Bodies of water",
            "Places",
            "Landforms",
            "Water",
            "Names",
            "Earth",
            "Liquids",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Nature",
            "Matter",
            "Fundamental",
            "Nouns",
            "Chemistry",
            "Lemmas",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the Aar river"
      ],
      "id": "en-Aar-fr-name-oX~Noey~",
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "Aar"
}

{
  "categories": [
    "de:Birds of prey",
    "de:Eagles"
  ],
  "head_templates": [
    {
      "args": {
        "g": "f"
      },
      "expansion": "Aar f",
      "name": "fr-proper noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French proper nouns",
        "fr:Rivers"
      ],
      "glosses": [
        "the Aar river"
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "Aar"
}