"◌͘" meaning in Hokkien

{
  "lang": "Hokkien",
  "lang_code": "nan-hbl",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hokkien diacritical marks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hokkien entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hokkien terms in nonstandard scripts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Used to create the letter ⟨o͘⟩ and, in Zhangzhou dialect, ⟨e͘⟩."
      ],
      "id": "en-◌͘-nan-hbl-character-16wyvxaS",
      "links": [
        [
          "Pe̍h-ōe-jī",
          "Pe̍h-ōe-jī"
        ],
        [
          "o͘",
          "o͘"
        ],
        [
          "Zhangzhou",
          "Zhangzhou"
        ],
        [
          "e͘",
          "e͘"
        ]
      ],
      "raw_glosses": [
        "(Pe̍h-ōe-jī romanization) Used to create the letter ⟨o͘⟩ and, in Zhangzhou dialect, ⟨e͘⟩."
      ],
      "tags": [
        "diacritic"
      ]
    }
  ],
  "word": "◌͘"
}

{
  "lang": "Hokkien",
  "lang_code": "nan-hbl",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "Hokkien diacritical marks",
        "Hokkien entries with incorrect language header",
        "Hokkien lemmas",
        "Hokkien terms in nonstandard scripts",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Used to create the letter ⟨o͘⟩ and, in Zhangzhou dialect, ⟨e͘⟩."
      ],
      "links": [
        [
          "Pe̍h-ōe-jī",
          "Pe̍h-ōe-jī"
        ],
        [
          "o͘",
          "o͘"
        ],
        [
          "Zhangzhou",
          "Zhangzhou"
        ],
        [
          "e͘",
          "e͘"
        ]
      ],
      "raw_glosses": [
        "(Pe̍h-ōe-jī romanization) Used to create the letter ⟨o͘⟩ and, in Zhangzhou dialect, ⟨e͘⟩."
      ],
      "tags": [
        "diacritic"
      ]
    }
  ],
  "word": "◌͘"
}