"空自" meaning in Japanese

{
  "forms": [
    {
      "form": "空自",
      "ruby": [
        [
          "空",
          "くう"
        ],
        [
          "自",
          "じ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Kūji",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "くうじ"
      },
      "expansion": "空(くう)自(じ) • (Kūji)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Kōkū Jieitai, “Japan Air Self-Defense Force, JASDF”",
          "word": "航空自衛隊"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Short for 航空自衛隊 (Kōkū Jieitai, “Japan Air Self-Defense Force, JASDF”)."
      ],
      "id": "en-空自-ja-name-Oty3-M6M",
      "links": [
        [
          "航空自衛隊",
          "航空自衛隊#Japanese"
        ]
      ],
      "related": [
        {
          "english": "Japan Maritime Self-Defense Force, JMSDF",
          "roman": "Kaiji",
          "ruby": [
            [
              "海自",
              "かいじ"
            ]
          ],
          "word": "海自"
        },
        {
          "english": "Japan Ground Self-Defense Force, JGSDF",
          "roman": "Rikuji",
          "ruby": [
            [
              "陸自",
              "りくじ"
            ]
          ],
          "word": "陸自"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "wikipedia": [
        "Japan Air Self-Defense Force",
        "ja:航空自衛隊"
      ]
    }
  ],
  "word": "空自"
}

{
  "forms": [
    {
      "form": "空自",
      "ruby": [
        [
          "空",
          "くう"
        ],
        [
          "自",
          "じ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Kūji",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "くうじ"
      },
      "expansion": "空(くう)自(じ) • (Kūji)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "related": [
    {
      "english": "Japan Maritime Self-Defense Force, JMSDF",
      "roman": "Kaiji",
      "ruby": [
        [
          "海自",
          "かいじ"
        ]
      ],
      "word": "海自"
    },
    {
      "english": "Japan Ground Self-Defense Force, JGSDF",
      "roman": "Rikuji",
      "ruby": [
        [
          "陸自",
          "りくじ"
        ]
      ],
      "word": "陸自"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Kōkū Jieitai, “Japan Air Self-Defense Force, JASDF”",
          "word": "航空自衛隊"
        }
      ],
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese proper nouns",
        "Japanese short forms",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters"
      ],
      "glosses": [
        "Short for 航空自衛隊 (Kōkū Jieitai, “Japan Air Self-Defense Force, JASDF”)."
      ],
      "links": [
        [
          "航空自衛隊",
          "航空自衛隊#Japanese"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "wikipedia": [
        "Japan Air Self-Defense Force",
        "ja:航空自衛隊"
      ]
    }
  ],
  "word": "空自"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "空自"
  ],
  "section": "Japanese",
  "subsection": "proper noun",
  "title": "空自",
  "trace": ""
}