"game-changer" meaning in English

{
  "forms": [
    {
      "form": "game-changers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "game-changer (plural game-changers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "game changer"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2014, Daniel W. Drezner, The System Worked: How the World Stopped Another Great Depression, Oxford University Press, page 24",
          "text": "In this chapter I look at why there were excellent reasons to believe that the 2008 crisis could have been a game-changer in how elites and publics viewed the global economy in general and neoliberalism in particular, […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of game changer"
      ],
      "id": "en-game-changer-en-noun-OdQByz9x",
      "links": [
        [
          "game changer",
          "game changer#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "game-changer"
}

{
  "forms": [
    {
      "form": "game-changers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "game-changer (plural game-changers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "game changer"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2014, Daniel W. Drezner, The System Worked: How the World Stopped Another Great Depression, Oxford University Press, page 24",
          "text": "In this chapter I look at why there were excellent reasons to believe that the 2008 crisis could have been a game-changer in how elites and publics viewed the global economy in general and neoliberalism in particular, […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of game changer"
      ],
      "links": [
        [
          "game changer",
          "game changer#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "game-changer"
}