"trump card" meaning in English

{
  "forms": [
    {
      "form": "trump cards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "trump card (plural trump cards)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Card games",
          "orig": "en:Card games",
          "parents": [
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "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"
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          "source": "w+disamb"
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        {
          "_dis": "62 38",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "65 35",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A playing card, of the trump suit that is held in reserve until needed to win a trick."
      ],
      "id": "en-trump_card-en-noun-5E8KZJ~S",
      "links": [
        [
          "card game",
          "card game"
        ],
        [
          "playing card",
          "playing card"
        ],
        [
          "suit",
          "suite"
        ],
        [
          "reserve",
          "reserve"
        ],
        [
          "win",
          "win"
        ],
        [
          "trick",
          "trick"
        ]
      ],
      "raw_glosses": [
        "(card games) A playing card, of the trump suit that is held in reserve until needed to win a trick."
      ],
      "topics": [
        "card-games",
        "games"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "ref": "c. 1921 (date written), Karel Čapek, translated by Paul Selver, R.U.R. (Rossum’s Universal Robots): A Fantastic Melodrama […], Garden City, N.Y.: Doubleday, Page & Company, published 1923, →OCLC, Act 2:",
          "text": "Domin\nThe secret of their manufacture. Old Rossum's manuscript. As soon as they found out that they couldn't make themselves they'd be on their knees to us.\nDr. Gall\nMadame Domin, that was our trump card. I never had the least fear that the Robots would win. How could they against people like us?",
          "type": "quote"
        },
        {
          "ref": "2012, Zadie Smith, NW, London: Penguin Books, published 2013, →ISBN, page 160:",
          "text": "Desperate now to leave, Felix played what he believed was his trump card. ‘You’re forty-whatever. Look at you. You’re still living like this. I want to have kids. I want to get on with my life.’",
          "type": "quote"
        }
      ],
      "glosses": [
        "Something used to obtain an advantage, sometimes unscrupulously."
      ],
      "id": "en-trump_card-en-noun-qQ9hWIhE",
      "links": [
        [
          "advantage",
          "advantage"
        ],
        [
          "unscrupulously",
          "unscrupulously"
        ]
      ],
      "raw_glosses": [
        "(figurative) Something used to obtain an advantage, sometimes unscrupulously."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "word": "trump card"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "trump cards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "trump card (plural trump cards)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Card games"
      ],
      "glosses": [
        "A playing card, of the trump suit that is held in reserve until needed to win a trick."
      ],
      "links": [
        [
          "card game",
          "card game"
        ],
        [
          "playing card",
          "playing card"
        ],
        [
          "suit",
          "suite"
        ],
        [
          "reserve",
          "reserve"
        ],
        [
          "win",
          "win"
        ],
        [
          "trick",
          "trick"
        ]
      ],
      "raw_glosses": [
        "(card games) A playing card, of the trump suit that is held in reserve until needed to win a trick."
      ],
      "topics": [
        "card-games",
        "games"
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "c. 1921 (date written), Karel Čapek, translated by Paul Selver, R.U.R. (Rossum’s Universal Robots): A Fantastic Melodrama […], Garden City, N.Y.: Doubleday, Page & Company, published 1923, →OCLC, Act 2:",
          "text": "Domin\nThe secret of their manufacture. Old Rossum's manuscript. As soon as they found out that they couldn't make themselves they'd be on their knees to us.\nDr. Gall\nMadame Domin, that was our trump card. I never had the least fear that the Robots would win. How could they against people like us?",
          "type": "quote"
        },
        {
          "ref": "2012, Zadie Smith, NW, London: Penguin Books, published 2013, →ISBN, page 160:",
          "text": "Desperate now to leave, Felix played what he believed was his trump card. ‘You’re forty-whatever. Look at you. You’re still living like this. I want to have kids. I want to get on with my life.’",
          "type": "quote"
        }
      ],
      "glosses": [
        "Something used to obtain an advantage, sometimes unscrupulously."
      ],
      "links": [
        [
          "advantage",
          "advantage"
        ],
        [
          "unscrupulously",
          "unscrupulously"
        ]
      ],
      "raw_glosses": [
        "(figurative) Something used to obtain an advantage, sometimes unscrupulously."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "word": "trump card"
}