"央州" meaning in Japanese

{
  "forms": [
    {
      "form": "央州",
      "ruby": [
        [
          "央",
          "おう"
        ],
        [
          "州",
          "しゅう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Ōshū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "Ausiu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "あうしう",
      "roman": "Ausiu",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "おうしゅう",
        "hhira": "あうしう"
      },
      "expansion": "央(おう)州(しゅう) • (Ōshū) ^(←あうしう (Ausiu)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Oregon, USA",
          "orig": "ja:Oregon, USA",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "ja",
          "name": "Places in the United States",
          "orig": "ja:Places in the United States",
          "parents": [
            "Places"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "ja",
          "name": "States of the United States",
          "orig": "ja:States of the United States",
          "parents": [
            "States",
            "Places"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Oregon (a state of the United States)"
      ],
      "id": "en-央州-ja-name-y0TrJGxI",
      "links": [
        [
          "Oregon",
          "Oregon#English"
        ],
        [
          "state",
          "state"
        ],
        [
          "United States",
          "United States#English"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Oregon (a state of the United States)"
      ],
      "synonyms": [
        {
          "roman": "Oregon-shū",
          "ruby": [
            [
              "州",
              "しゅう"
            ]
          ],
          "word": "オレゴン州"
        }
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[o̞ːɕɨː]"
    }
  ],
  "word": "央州"
}

{
  "forms": [
    {
      "form": "央州",
      "ruby": [
        [
          "央",
          "おう"
        ],
        [
          "州",
          "しゅう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Ōshū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "Ausiu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "あうしう",
      "roman": "Ausiu",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "おうしゅう",
        "hhira": "あうしう"
      },
      "expansion": "央(おう)州(しゅう) • (Ōshū) ^(←あうしう (Ausiu)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese proper nouns",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with 2 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation missing pitch accent",
        "Japanese terms with obsolete senses",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Oregon, USA",
        "ja:Places in the United States",
        "ja:States of the United States"
      ],
      "glosses": [
        "Oregon (a state of the United States)"
      ],
      "links": [
        [
          "Oregon",
          "Oregon#English"
        ],
        [
          "state",
          "state"
        ],
        [
          "United States",
          "United States#English"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Oregon (a state of the United States)"
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[o̞ːɕɨː]"
    }
  ],
  "synonyms": [
    {
      "roman": "Oregon-shū",
      "ruby": [
        [
          "州",
          "しゅう"
        ]
      ],
      "word": "オレゴン州"
    }
  ],
  "word": "央州"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "央州"
  ],
  "section": "Japanese",
  "subsection": "proper noun",
  "title": "央州",
  "trace": "started on line 2, detected on line 2"
}

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