"-" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "symbol",
  "pos_title": "Symbole",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Signes de ponctuation en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1=James H. Burke et Howard J. Hausman,Effectiveness of Training Needs Tests as Aids in On-The-Job Training, dans Symposium on Air Force Human Engineering, Personnel and Training Research, 1956, page 60",
          "text": "The on-the-job training problem is complicated by a number of factors. In addition to the large number of men to be trained, supervisors very often are unqualified to conduct training on the job because they have not received adequate preparation."
        },
        {
          "ref": "1=Amadou Biallo,Mastering Digital Black and White: A Photographer’s Guide to High Quality Black-and-White Imaging and Printing, 2007, ISBN 9781598637588, p. 36",
          "text": "A dual display configuration of a 21- and 15-inch monitor will result in more horizontal screen area than a single 30-inch display."
        }
      ],
      "glosses": [
        "Relie tous les constituants dans un syntagme nominal utilisé comme nom épithète antéposé ou dans un syntagme prépositionnel utilisé comme adjectif antéposé."
      ],
      "id": "fr---en-symbol-IpeG9ZfU",
      "topics": [
        "typography"
      ]
    }
  ],
  "word": "-"
}

{
  "categories": [
    "anglais"
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "symbol",
  "pos_title": "Symbole",
  "senses": [
    {
      "categories": [
        "Signes de ponctuation en anglais"
      ],
      "examples": [
        {
          "ref": "1=James H. Burke et Howard J. Hausman,Effectiveness of Training Needs Tests as Aids in On-The-Job Training, dans Symposium on Air Force Human Engineering, Personnel and Training Research, 1956, page 60",
          "text": "The on-the-job training problem is complicated by a number of factors. In addition to the large number of men to be trained, supervisors very often are unqualified to conduct training on the job because they have not received adequate preparation."
        },
        {
          "ref": "1=Amadou Biallo,Mastering Digital Black and White: A Photographer’s Guide to High Quality Black-and-White Imaging and Printing, 2007, ISBN 9781598637588, p. 36",
          "text": "A dual display configuration of a 21- and 15-inch monitor will result in more horizontal screen area than a single 30-inch display."
        }
      ],
      "glosses": [
        "Relie tous les constituants dans un syntagme nominal utilisé comme nom épithète antéposé ou dans un syntagme prépositionnel utilisé comme adjectif antéposé."
      ],
      "topics": [
        "typography"
      ]
    }
  ],
  "word": "-"
}