"AAAC" meaning in English

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      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "American Association for the Advancement of Criminology"
        }
      ],
      "categories": [
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w+disamb"
        },
        {
          "_dis": "71 29",
          "kind": "other",
          "name": "English terms with 3 consecutive instances of the same letter",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Initialism of American Association for the Advancement of Criminology."
      ],
      "id": "en-AAAC-en-name-xiwDp1Y2",
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    },
    {
      "alt_of": [
        {
          "word": "Antiaircraft Australian Army Aviation Corps"
        }
      ],
      "categories": [
        {
          "_dis": "45 55",
          "kind": "topical",
          "langcode": "en",
          "name": "Organizations",
          "orig": "en:Organizations",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Initialism of Antiaircraft Australian Army Aviation Corps."
      ],
      "id": "en-AAAC-en-name-PzggoNzY",
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "AAAC"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English initialisms",
    "English lemmas",
    "English proper nouns",
    "English terms with 3 consecutive instances of the same letter",
    "English uncountable nouns",
    "en:Organizations"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "AAAC",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "American Association for the Advancement of Criminology"
        }
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      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "Initialism of American Association for the Advancement of Criminology."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
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    },
    {
      "alt_of": [
        {
          "word": "Antiaircraft Australian Army Aviation Corps"
        }
      ],
      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "Initialism of Antiaircraft Australian Army Aviation Corps."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "AAAC"
}