"left bracket" meaning in English

{
  "forms": [
    {
      "form": "left brackets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "left bracket (plural left brackets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Commonwealth English",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A left or open parenthesis ⟨(⟩."
      ],
      "id": "en-left_bracket-en-noun-s3viYwVw",
      "links": [
        [
          "left",
          "left"
        ],
        [
          "open",
          "open"
        ],
        [
          "parenthesis",
          "parenthesis"
        ],
        [
          "(",
          "("
        ]
      ],
      "raw_glosses": [
        "(Commonwealth) A left or open parenthesis ⟨(⟩."
      ],
      "tags": [
        "Commonwealth"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "42 58",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A left or open square bracket ⟨[⟩."
      ],
      "id": "en-left_bracket-en-noun-KAe9SK6H",
      "links": [
        [
          "left",
          "left"
        ],
        [
          "open",
          "open"
        ],
        [
          "square bracket",
          "square bracket"
        ],
        [
          "[",
          "Unsupported_titles/Left_square_bracket"
        ]
      ],
      "raw_glosses": [
        "(US) A left or open square bracket ⟨[⟩."
      ],
      "related": [
        {
          "_dis1": "40 60",
          "word": "right bracket"
        }
      ],
      "tags": [
        "US"
      ],
      "translations": [
        {
          "_dis1": "14 86",
          "code": "fi",
          "lang": "Finnish",
          "sense": "left square bracket",
          "word": "vasen hakasulje"
        }
      ]
    }
  ],
  "word": "left bracket"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Finnish translations"
  ],
  "forms": [
    {
      "form": "left brackets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "left bracket (plural left brackets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "right bracket"
    }
  ],
  "senses": [
    {
      "categories": [
        "Commonwealth English"
      ],
      "glosses": [
        "A left or open parenthesis ⟨(⟩."
      ],
      "links": [
        [
          "left",
          "left"
        ],
        [
          "open",
          "open"
        ],
        [
          "parenthesis",
          "parenthesis"
        ],
        [
          "(",
          "("
        ]
      ],
      "raw_glosses": [
        "(Commonwealth) A left or open parenthesis ⟨(⟩."
      ],
      "tags": [
        "Commonwealth"
      ]
    },
    {
      "categories": [
        "American English"
      ],
      "glosses": [
        "A left or open square bracket ⟨[⟩."
      ],
      "links": [
        [
          "left",
          "left"
        ],
        [
          "open",
          "open"
        ],
        [
          "square bracket",
          "square bracket"
        ],
        [
          "[",
          "Unsupported_titles/Left_square_bracket"
        ]
      ],
      "raw_glosses": [
        "(US) A left or open square bracket ⟨[⟩."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "left square bracket",
      "word": "vasen hakasulje"
    }
  ],
  "word": "left bracket"
}