"doubleton" meaning in English

{
  "coordinate_terms": [
    {
      "_dis1": "0 0",
      "word": "singleton"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "double",
        "3": "ton"
      },
      "expansion": "double + -ton",
      "name": "suffix"
    }
  ],
  "etymology_text": "From double + -ton.",
  "forms": [
    {
      "form": "doubletons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "doubleton (plural doubletons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A set containing precisely two elements."
      ],
      "id": "en-doubleton-en-noun-QVYoYPBs",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "set",
          "set"
        ],
        [
          "two",
          "two"
        ],
        [
          "element",
          "element"
        ]
      ],
      "raw_glosses": [
        "(mathematics, rare) A set containing precisely two elements."
      ],
      "tags": [
        "rare"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "translations": [
        {
          "_dis1": "96 4",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "dubǎl",
          "sense": "math: set of two elements",
          "tags": [
            "masculine"
          ],
          "word": "дубъл"
        },
        {
          "_dis1": "96 4",
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "math: set of two elements",
          "word": "双元素集"
        },
        {
          "_dis1": "96 4",
          "code": "fr",
          "lang": "French",
          "sense": "math: set of two elements",
          "tags": [
            "masculine"
          ],
          "word": "doublet"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Bridge",
          "orig": "en:Bridge",
          "parents": [
            "Card games",
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "20 80",
          "kind": "other",
          "name": "English terms suffixed with -ton",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "7 93",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Terms with Bulgarian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2009 January 8, Phillip Alder, “Part 1 of an Experiment, Ending in a Trump Coup”, Bridge, in New York Times:",
          "text": "If she had had the doubleton ace of diamonds and a low club, she would have made a four-club splinter bid, showing four-card spade support, the values for game and a singleton or void in clubs.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A pair of cards of the same suit, which are the only cards of that suit in a player's hand"
      ],
      "id": "en-doubleton-en-noun-IxugHuby",
      "links": [
        [
          "pair",
          "pair"
        ]
      ],
      "raw_glosses": [
        "(bridge) A pair of cards of the same suit, which are the only cards of that suit in a player's hand"
      ],
      "topics": [
        "bridge",
        "games"
      ],
      "translations": [
        {
          "_dis1": "12 88",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "dubǎl",
          "sense": "bridge: two cards of same suit",
          "tags": [
            "masculine"
          ],
          "word": "дубъл"
        },
        {
          "_dis1": "12 88",
          "code": "fi",
          "lang": "Finnish",
          "sense": "bridge: two cards of same suit",
          "word": "dubbeli"
        },
        {
          "_dis1": "12 88",
          "code": "pl",
          "lang": "Polish",
          "sense": "bridge: two cards of same suit",
          "tags": [
            "masculine"
          ],
          "word": "dubleton"
        }
      ]
    }
  ],
  "word": "doubleton"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms suffixed with -ton",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Bulgarian translations",
    "Terms with Finnish translations",
    "Terms with French translations",
    "Terms with Mandarin translations",
    "Terms with Polish translations"
  ],
  "coordinate_terms": [
    {
      "word": "singleton"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "double",
        "3": "ton"
      },
      "expansion": "double + -ton",
      "name": "suffix"
    }
  ],
  "etymology_text": "From double + -ton.",
  "forms": [
    {
      "form": "doubletons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "doubleton (plural doubletons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English terms with rare senses",
        "en:Mathematics"
      ],
      "glosses": [
        "A set containing precisely two elements."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "set",
          "set"
        ],
        [
          "two",
          "two"
        ],
        [
          "element",
          "element"
        ]
      ],
      "raw_glosses": [
        "(mathematics, rare) A set containing precisely two elements."
      ],
      "tags": [
        "rare"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "en:Bridge"
      ],
      "examples": [
        {
          "ref": "2009 January 8, Phillip Alder, “Part 1 of an Experiment, Ending in a Trump Coup”, Bridge, in New York Times:",
          "text": "If she had had the doubleton ace of diamonds and a low club, she would have made a four-club splinter bid, showing four-card spade support, the values for game and a singleton or void in clubs.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A pair of cards of the same suit, which are the only cards of that suit in a player's hand"
      ],
      "links": [
        [
          "pair",
          "pair"
        ]
      ],
      "raw_glosses": [
        "(bridge) A pair of cards of the same suit, which are the only cards of that suit in a player's hand"
      ],
      "topics": [
        "bridge",
        "games"
      ]
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "dubǎl",
      "sense": "math: set of two elements",
      "tags": [
        "masculine"
      ],
      "word": "дубъл"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "math: set of two elements",
      "word": "双元素集"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "math: set of two elements",
      "tags": [
        "masculine"
      ],
      "word": "doublet"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "dubǎl",
      "sense": "bridge: two cards of same suit",
      "tags": [
        "masculine"
      ],
      "word": "дубъл"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "bridge: two cards of same suit",
      "word": "dubbeli"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "bridge: two cards of same suit",
      "tags": [
        "masculine"
      ],
      "word": "dubleton"
    }
  ],
  "word": "doubleton"
}