"hard deck" meaning in All languages combined

{
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    {
      "args": {
        "1": "-"
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      "expansion": "hard deck (uncountable)",
      "name": "en-noun"
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  ],
  "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"
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          "source": "w"
        },
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          "source": "w"
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1986, Top Gun:",
          "text": "Get your butts above the hard deck. Return to base immediately.",
          "type": "quote"
        }
      ],
      "glosses": [
        "In air combat training, the minimum allowed altitude below which the aircraft is considered destroyed by ground impact."
      ],
      "id": "en-hard_deck-en-noun-CWoEUmzI",
      "links": [
        [
          "aviation",
          "aviation"
        ]
      ],
      "raw_glosses": [
        "(aviation) In air combat training, the minimum allowed altitude below which the aircraft is considered destroyed by ground impact."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "hard deck"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "hard deck (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "en:Aviation"
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          "ref": "1986, Top Gun:",
          "text": "Get your butts above the hard deck. Return to base immediately.",
          "type": "quote"
        }
      ],
      "glosses": [
        "In air combat training, the minimum allowed altitude below which the aircraft is considered destroyed by ground impact."
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ]
      ],
      "raw_glosses": [
        "(aviation) In air combat training, the minimum allowed altitude below which the aircraft is considered destroyed by ground impact."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "hard deck"
}