"AK" meaning in Allemand

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Maladies en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Sigles en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Allemand",
      "orig": "allemand",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "(Sigle) Abréviation de Alzheimer-Krankheit."
  ],
  "lang": "Allemand",
  "lang_code": "de",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Maladie d’Alzheimer."
      ],
      "id": "fr-AK-de-noun-CIE7DiLR"
    }
  ],
  "sounds": [
    {
      "ipa": "\\aː"
    },
    {
      "ipa": "kaː\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "AK"
}

{
  "categories": [
    "Lemmes en allemand",
    "Maladies en allemand",
    "Noms communs en allemand",
    "Sigles en allemand",
    "allemand"
  ],
  "etymology_texts": [
    "(Sigle) Abréviation de Alzheimer-Krankheit."
  ],
  "lang": "Allemand",
  "lang_code": "de",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Maladie d’Alzheimer."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\aː"
    },
    {
      "ipa": "kaː\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "AK"
}