".xxx" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "noun"
      },
      "expansion": ".xxx",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "noun",
  "senses": [
    {
      "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 terms with 3 consecutive instances of the same letter",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Internet",
          "orig": "mul:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An Internet top-level domain intended for adult and pornographic content."
      ],
      "id": "en-.xxx-mul-noun-JluqQFFT",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "top-level domain",
          "top-level domain"
        ],
        [
          "pornographic",
          "pornographic"
        ]
      ],
      "raw_glosses": [
        "(Internet) An Internet top-level domain intended for adult and pornographic content."
      ],
      "tags": [
        "Internet"
      ],
      "wikipedia": [
        ".xxx"
      ]
    }
  ],
  "word": ".xxx"
}

{
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "noun"
      },
      "expansion": ".xxx",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual nouns",
        "Translingual terms spelled with .",
        "Translingual terms with 3 consecutive instances of the same letter",
        "mul:Internet"
      ],
      "glosses": [
        "An Internet top-level domain intended for adult and pornographic content."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "top-level domain",
          "top-level domain"
        ],
        [
          "pornographic",
          "pornographic"
        ]
      ],
      "raw_glosses": [
        "(Internet) An Internet top-level domain intended for adult and pornographic content."
      ],
      "tags": [
        "Internet"
      ],
      "wikipedia": [
        ".xxx"
      ]
    }
  ],
  "word": ".xxx"
}