"gameday" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "game",
        "3": "day"
      },
      "expansion": "game + day",
      "name": "compound"
    }
  ],
  "etymology_text": "From game + day.",
  "forms": [
    {
      "form": "gamedays",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gameday (plural gamedays)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sports",
          "orig": "en:Sports",
          "parents": [
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The day on which a sports team plays a game."
      ],
      "id": "en-gameday-en-noun-KAnBdyFo",
      "links": [
        [
          "sport",
          "sport"
        ],
        [
          "team",
          "team"
        ],
        [
          "game",
          "game"
        ]
      ]
    }
  ],
  "word": "gameday"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "game",
        "3": "day"
      },
      "expansion": "game + day",
      "name": "compound"
    }
  ],
  "etymology_text": "From game + day.",
  "forms": [
    {
      "form": "gamedays",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gameday (plural gamedays)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Sports"
      ],
      "glosses": [
        "The day on which a sports team plays a game."
      ],
      "links": [
        [
          "sport",
          "sport"
        ],
        [
          "team",
          "team"
        ],
        [
          "game",
          "game"
        ]
      ]
    }
  ],
  "word": "gameday"
}