"◌̄" meaning in English

{
  "lang": "English",
  "lang_code": "en",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Lexicography",
          "orig": "en:Lexicography",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Used to mark a vowel letter as having its 'long' sound: ⟨ā⟩ /eɪ/, ⟨ē⟩ /iː/, ⟨ī⟩ /aɪ/, ⟨ō⟩ /oʊ/, ⟨ū⟩ /juː/."
      ],
      "id": "en-◌̄-en-character-kgiKB-r6",
      "links": [
        [
          "lexicography",
          "lexicography"
        ]
      ],
      "raw_glosses": [
        "(lexicography) Used to mark a vowel letter as having its 'long' sound: ⟨ā⟩ /eɪ/, ⟨ē⟩ /iː/, ⟨ī⟩ /aɪ/, ⟨ō⟩ /oʊ/, ⟨ū⟩ /juː/."
      ],
      "tags": [
        "diacritic"
      ],
      "topics": [
        "human-sciences",
        "lexicography",
        "linguistics",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Poetry",
          "orig": "en:Poetry",
          "parents": [
            "Art",
            "Literature",
            "Culture",
            "Entertainment",
            "Writing",
            "Society",
            "Human behaviour",
            "Language",
            "All topics",
            "Human",
            "Communication",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "8 10 1 29 7 24 21",
          "kind": "other",
          "name": "Pages with 9 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "36 64",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "34 66",
          "kind": "other",
          "name": "English terms in nonstandard scripts",
          "parents": [
            "Terms in nonstandard scripts",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "31 69",
          "kind": "topical",
          "name": "English diacritical marks",
          "parents": [
            "Diacritical marks",
            "Letters, symbols, and punctuation",
            "Symbols",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Placed over a vowel letter to indicate that the syllable is long. Also used alone to mark stress in a metrical foot or verse: see ⟨ˉ⟩."
      ],
      "id": "en-◌̄-en-character-WhEJ~OQD",
      "links": [
        [
          "poetry",
          "poetry"
        ],
        [
          "⟨ˉ⟩",
          "ˉ#English"
        ]
      ],
      "raw_glosses": [
        "(poetry) Placed over a vowel letter to indicate that the syllable is long. Also used alone to mark stress in a metrical foot or verse: see ⟨ˉ⟩."
      ],
      "tags": [
        "diacritic"
      ],
      "topics": [
        "communications",
        "journalism",
        "literature",
        "media",
        "poetry",
        "publishing",
        "writing"
      ]
    }
  ],
  "word": "◌̄"
}

{
  "categories": [
    "English diacritical marks",
    "English entries with incorrect language header",
    "English lemmas",
    "English terms in nonstandard scripts",
    "Pages with 9 entries",
    "Pages with entries"
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "en:Lexicography"
      ],
      "glosses": [
        "Used to mark a vowel letter as having its 'long' sound: ⟨ā⟩ /eɪ/, ⟨ē⟩ /iː/, ⟨ī⟩ /aɪ/, ⟨ō⟩ /oʊ/, ⟨ū⟩ /juː/."
      ],
      "links": [
        [
          "lexicography",
          "lexicography"
        ]
      ],
      "raw_glosses": [
        "(lexicography) Used to mark a vowel letter as having its 'long' sound: ⟨ā⟩ /eɪ/, ⟨ē⟩ /iː/, ⟨ī⟩ /aɪ/, ⟨ō⟩ /oʊ/, ⟨ū⟩ /juː/."
      ],
      "tags": [
        "diacritic"
      ],
      "topics": [
        "human-sciences",
        "lexicography",
        "linguistics",
        "sciences"
      ]
    },
    {
      "categories": [
        "en:Poetry"
      ],
      "glosses": [
        "Placed over a vowel letter to indicate that the syllable is long. Also used alone to mark stress in a metrical foot or verse: see ⟨ˉ⟩."
      ],
      "links": [
        [
          "poetry",
          "poetry"
        ],
        [
          "⟨ˉ⟩",
          "ˉ#English"
        ]
      ],
      "raw_glosses": [
        "(poetry) Placed over a vowel letter to indicate that the syllable is long. Also used alone to mark stress in a metrical foot or verse: see ⟨ˉ⟩."
      ],
      "tags": [
        "diacritic"
      ],
      "topics": [
        "communications",
        "journalism",
        "literature",
        "media",
        "poetry",
        "publishing",
        "writing"
      ]
    }
  ],
  "word": "◌̄"
}