"∓" meaning in All languages combined

{
  "antonyms": [
    {
      "word": "±"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "symbol"
      },
      "expansion": "∓",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Mathematics",
          "orig": "mul:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "66 20 15",
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "cos (x±y)= cos x cos y∓ sin x sin y⟺ big ( cos (x+y)= cos x cos y- sin x sin y∧ cos (x-y)= cos x cos y+ sin x sin y big )"
        }
      ],
      "glosses": [
        "The minus-plus sign: used after ± to indicate that when the first operation is 'plus', this one is 'minus', and vice versa."
      ],
      "id": "en-∓-mul-symbol-CHEv00kY",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "minus-plus sign",
          "minus-plus sign"
        ],
        [
          "±",
          "±"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The minus-plus sign: used after ± to indicate that when the first operation is 'plus', this one is 'minus', and vice versa."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Chess",
          "orig": "mul:Chess",
          "parents": [
            "Board games",
            "Tabletop games",
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Advantage for black."
      ],
      "id": "en-∓-mul-symbol-zv3k16tG",
      "links": [
        [
          "chess",
          "chess"
        ]
      ],
      "raw_glosses": [
        "(chess) Advantage for black."
      ],
      "topics": [
        "board-games",
        "chess",
        "games"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Astrology",
          "orig": "mul:Astrology",
          "parents": [
            "Divination",
            "Pseudoscience",
            "Occult",
            "Sciences",
            "Forteana",
            "Religion",
            "All topics",
            "Culture",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A tredecile (3⁄10) aspect of 108°."
      ],
      "id": "en-∓-mul-symbol-dTnEjo~g",
      "links": [
        [
          "astrology",
          "astrology"
        ],
        [
          "tredecile",
          "tredecile"
        ],
        [
          "aspect",
          "aspect"
        ]
      ],
      "raw_glosses": [
        "(astrology) A tredecile (3⁄10) aspect of 108°."
      ],
      "synonyms": [
        {
          "word": "D³"
        }
      ],
      "topics": [
        "astrology",
        "human-sciences",
        "mysticism",
        "philosophy",
        "sciences"
      ]
    }
  ],
  "word": "∓"
}

{
  "antonyms": [
    {
      "word": "±"
    }
  ],
  "categories": [
    "Translingual entries with incorrect language header",
    "Translingual lemmas",
    "Translingual symbols"
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "symbol"
      },
      "expansion": "∓",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        "mul:Mathematics"
      ],
      "examples": [
        {
          "text": "cos (x±y)= cos x cos y∓ sin x sin y⟺ big ( cos (x+y)= cos x cos y- sin x sin y∧ cos (x-y)= cos x cos y+ sin x sin y big )"
        }
      ],
      "glosses": [
        "The minus-plus sign: used after ± to indicate that when the first operation is 'plus', this one is 'minus', and vice versa."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "minus-plus sign",
          "minus-plus sign"
        ],
        [
          "±",
          "±"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The minus-plus sign: used after ± to indicate that when the first operation is 'plus', this one is 'minus', and vice versa."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        "mul:Chess"
      ],
      "glosses": [
        "Advantage for black."
      ],
      "links": [
        [
          "chess",
          "chess"
        ]
      ],
      "raw_glosses": [
        "(chess) Advantage for black."
      ],
      "topics": [
        "board-games",
        "chess",
        "games"
      ]
    },
    {
      "categories": [
        "mul:Astrology"
      ],
      "glosses": [
        "A tredecile (3⁄10) aspect of 108°."
      ],
      "links": [
        [
          "astrology",
          "astrology"
        ],
        [
          "tredecile",
          "tredecile"
        ],
        [
          "aspect",
          "aspect"
        ]
      ],
      "raw_glosses": [
        "(astrology) A tredecile (3⁄10) aspect of 108°."
      ],
      "synonyms": [
        {
          "word": "D³"
        }
      ],
      "topics": [
        "astrology",
        "human-sciences",
        "mysticism",
        "philosophy",
        "sciences"
      ]
    }
  ],
  "word": "∓"
}