"Alt-F4" meaning in English

{
  "forms": [
    {
      "form": "Alt-F4s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "Alt-F4 (countable and uncountable, plural Alt-F4s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Graphical user interface",
          "orig": "en:Graphical user interface",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "60 40",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A keyboard shortcut in Windows that completely closes the application or a focused window."
      ],
      "id": "en-Alt-F4-en-noun-bVkvx8fe",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "graphical user interface",
          "graphical user interface"
        ],
        [
          "Windows",
          "Windows"
        ]
      ],
      "raw_glosses": [
        "(computing, graphical user interface) A keyboard shortcut in Windows that completely closes the application or a focused window."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "computing",
        "engineering",
        "graphical-user-interface",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    },
    {
      "categories": [],
      "glosses": [
        "An Internet meme involving novice users being tricked into closing applications."
      ],
      "id": "en-Alt-F4-en-noun-mMvS0i4f",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "meme",
          "meme"
        ],
        [
          "involving",
          "involving"
        ],
        [
          "novice",
          "novice"
        ],
        [
          "users",
          "users"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, uncommon) An Internet meme involving novice users being tricked into closing applications."
      ],
      "tags": [
        "Internet",
        "countable",
        "uncommon",
        "uncountable"
      ]
    }
  ],
  "word": "Alt-F4"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms spelled with numbers",
    "English uncountable nouns"
  ],
  "forms": [
    {
      "form": "Alt-F4s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "Alt-F4 (countable and uncountable, plural Alt-F4s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Computing",
        "en:Graphical user interface"
      ],
      "glosses": [
        "A keyboard shortcut in Windows that completely closes the application or a focused window."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "graphical user interface",
          "graphical user interface"
        ],
        [
          "Windows",
          "Windows"
        ]
      ],
      "raw_glosses": [
        "(computing, graphical user interface) A keyboard shortcut in Windows that completely closes the application or a focused window."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "computing",
        "engineering",
        "graphical-user-interface",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    },
    {
      "categories": [
        "English internet slang",
        "English terms with uncommon senses"
      ],
      "glosses": [
        "An Internet meme involving novice users being tricked into closing applications."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "meme",
          "meme"
        ],
        [
          "involving",
          "involving"
        ],
        [
          "novice",
          "novice"
        ],
        [
          "users",
          "users"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, uncommon) An Internet meme involving novice users being tricked into closing applications."
      ],
      "tags": [
        "Internet",
        "countable",
        "uncommon",
        "uncountable"
      ]
    }
  ],
  "word": "Alt-F4"
}