"【 】" meaning in Japanese

{
  "head_templates": [
    {
      "args": {
        "1": "ja",
        "2": "punctuation mark"
      },
      "expansion": "【 】",
      "name": "head"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "punct",
  "senses": [
    {
      "categories": [
        {
          "_dis": "25 26 25 23",
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Lenticular brackets."
      ],
      "id": "en-【_】-ja-punct-eMwTdkkM",
      "links": [
        [
          "Lenticular",
          "lenticular"
        ]
      ],
      "raw_tags": [
        "punctuation"
      ]
    },
    {
      "categories": [
        {
          "_dis": "25 26 25 23",
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "28 72",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "41 59",
          "kind": "other",
          "name": "Japanese entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "44 56",
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "44 56",
          "kind": "topical",
          "name": "Japanese matched pairs",
          "parents": [
            "Matched pairs",
            "Symbols",
            "Letters, symbols, and punctuation",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "37 63",
          "kind": "topical",
          "name": "Japanese punctuation marks",
          "parents": [
            "Punctuation marks",
            "Letters, symbols, and punctuation",
            "Symbols",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Encloses a heading or a text for emphasis."
      ],
      "id": "en-【_】-ja-punct-GJHtx0Zr",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Encloses a heading or a text for emphasis."
      ],
      "raw_tags": [
        "punctuation"
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "word": "【 】"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese entries with language name categories using raw markup",
    "Japanese lemmas",
    "Japanese matched pairs",
    "Japanese punctuation marks",
    "Japanese terms with non-redundant non-automated sortkeys",
    "Pages with raw sortkeys"
  ],
  "head_templates": [
    {
      "args": {
        "1": "ja",
        "2": "punctuation mark"
      },
      "expansion": "【 】",
      "name": "head"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "punct",
  "senses": [
    {
      "glosses": [
        "Lenticular brackets."
      ],
      "links": [
        [
          "Lenticular",
          "lenticular"
        ]
      ],
      "raw_tags": [
        "punctuation"
      ]
    },
    {
      "categories": [
        "Japanese internet slang"
      ],
      "glosses": [
        "Encloses a heading or a text for emphasis."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Encloses a heading or a text for emphasis."
      ],
      "raw_tags": [
        "punctuation"
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "word": "【 】"
}