"◌͡◌" meaning in Ancient Greek

{
  "forms": [
    {
      "form": "◌͜◌",
      "tags": [
        "canonical"
      ]
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Ancient Greek diacritical marks",
          "parents": [
            "Diacritical marks",
            "Letters, symbols, and punctuation",
            "Symbols",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ancient Greek terms in nonstandard scripts",
          "parents": [
            "Terms in nonstandard scripts",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Used to mark an ambiguous string of letters as being a single word, as due to the general lack of word-spacing they might otherwise be read separately."
      ],
      "id": "en-◌͡◌-grc-character-FZ2ToY6k",
      "raw_glosses": [
        "(papyrology) Used to mark an ambiguous string of letters as being a single word, as due to the general lack of word-spacing they might otherwise be read separately."
      ],
      "tags": [
        "diacritic"
      ],
      "topics": [
        "history",
        "human-sciences",
        "papyrology",
        "sciences"
      ]
    }
  ],
  "word": "◌͡◌"
}

{
  "forms": [
    {
      "form": "◌͜◌",
      "tags": [
        "canonical"
      ]
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "Ancient Greek diacritical marks",
        "Ancient Greek entries with incorrect language header",
        "Ancient Greek lemmas",
        "Ancient Greek palindromes",
        "Ancient Greek terms in nonstandard scripts",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Used to mark an ambiguous string of letters as being a single word, as due to the general lack of word-spacing they might otherwise be read separately."
      ],
      "raw_glosses": [
        "(papyrology) Used to mark an ambiguous string of letters as being a single word, as due to the general lack of word-spacing they might otherwise be read separately."
      ],
      "tags": [
        "diacritic"
      ],
      "topics": [
        "history",
        "human-sciences",
        "papyrology",
        "sciences"
      ]
    }
  ],
  "word": "◌͡◌"
}