"o͘" meaning in Hokkien

{
  "forms": [
    {
      "form": "O͘",
      "tags": [
        "uppercase"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "nan-hbl",
        "2": "letter",
        "3": "upper case",
        "4": "O͘"
      },
      "expansion": "o͘ (upper case O͘)",
      "name": "head"
    }
  ],
  "lang": "Hokkien",
  "lang_code": "nan-hbl",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "_dis": "100 0",
          "kind": "other",
          "name": "Hokkien entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "100 0",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "100 0",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A letter of Pe̍h-ōe-jī romanization."
      ],
      "id": "en-o͘-nan-hbl-character-P3bQHCcn",
      "links": [
        [
          "Pe̍h-ōe-jī",
          "Pe̍h-ōe-jī"
        ]
      ],
      "tags": [
        "letter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ³³/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    }
  ],
  "word": "o͘"
}

{
  "lang": "Hokkien",
  "lang_code": "nan-hbl",
  "pos": "character",
  "redirects": [
    "樢",
    "鷗",
    "塢",
    "洿",
    "區",
    "呱",
    "窩",
    "歐",
    "歍",
    "漚",
    "謳",
    "呱",
    "剾",
    "烏",
    "瞘",
    "惡",
    "於",
    "嗚",
    "鳿",
    "鄔",
    "鴮",
    "槔"
  ],
  "senses": [
    {
      "id": "en-o͘-nan-hbl-character-47DEQpj8",
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ³³/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    }
  ],
  "word": "o͘"
}

{
  "categories": [
    "Hokkien entries with incorrect language header",
    "Hokkien lemmas",
    "Hokkien letters",
    "Hokkien terms with IPA pronunciation",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "O͘",
      "tags": [
        "uppercase"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "nan-hbl",
        "2": "letter",
        "3": "upper case",
        "4": "O͘"
      },
      "expansion": "o͘ (upper case O͘)",
      "name": "head"
    }
  ],
  "lang": "Hokkien",
  "lang_code": "nan-hbl",
  "pos": "character",
  "senses": [
    {
      "glosses": [
        "A letter of Pe̍h-ōe-jī romanization."
      ],
      "links": [
        [
          "Pe̍h-ōe-jī",
          "Pe̍h-ōe-jī"
        ]
      ],
      "tags": [
        "letter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ³³/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    }
  ],
  "word": "o͘"
}

{
  "categories": [
    "Hokkien entries with incorrect language header",
    "Hokkien lemmas",
    "Hokkien letters",
    "Hokkien terms with IPA pronunciation",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "lang": "Hokkien",
  "lang_code": "nan-hbl",
  "pos": "character",
  "redirects": [
    "樢",
    "鷗",
    "塢",
    "洿",
    "區",
    "呱",
    "窩",
    "歐",
    "歍",
    "漚",
    "謳",
    "呱",
    "剾",
    "烏",
    "瞘",
    "惡",
    "於",
    "嗚",
    "鳿",
    "鄔",
    "鴮",
    "槔"
  ],
  "senses": [
    {
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ³³/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    },
    {
      "ipa": "/ɔ⁴⁴/"
    }
  ],
  "word": "o͘"
}