".----" meaning in All languages combined

{
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "num",
  "senses": [
    {
      "alt_of": [
        {
          "word": "1"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual numbers",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual terms with non-redundant manual script codes",
          "parents": [
            "Terms with non-redundant manual script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "One",
          "orig": "mul:One",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Visual rendering of Morse code for 1."
      ],
      "id": "en-.-----mul-num-dk-QmF-y",
      "links": [
        [
          "1",
          "1#Translingual"
        ]
      ],
      "raw_tags": [
        "number"
      ],
      "tags": [
        "alt-of",
        "morse-code",
        "visual-rendering"
      ]
    }
  ],
  "word": ".----"
}

{
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "num",
  "senses": [
    {
      "alt_of": [
        {
          "word": "1"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual numbers",
        "Translingual terms spelled with .",
        "Translingual terms with non-redundant manual script codes",
        "Translingual terms with redundant sortkeys",
        "mul:One"
      ],
      "glosses": [
        "Visual rendering of Morse code for 1."
      ],
      "links": [
        [
          "1",
          "1#Translingual"
        ]
      ],
      "raw_tags": [
        "number"
      ],
      "tags": [
        "alt-of",
        "morse-code",
        "visual-rendering"
      ]
    }
  ],
  "word": ".----"
}