"dance-off" meaning in English

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      "expansion": "Etymology tree\nVulgar Latin *dantiāreder.\nAnglo-Norman dauncerbor.\nMiddle English dauncen\nEnglish dance\nEnglish -off\nEnglish dance-off\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"alt\" : \"dauncer\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Vulgar Latin\", \"term\" : \"*dantiāre\", \"status\" : \"missing\", \"lang\" : \"la-vul\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Anglo-Norman\", \"term\" : \"dancier\", \"status\" : \"ok\", \"lang\" : \"xno\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"dauncen\", \"status\" : \"ok\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"English\", \"term\" : \"dance\", \"status\" : \"ok\", \"lang\" : \"en\" }, { \"children\" : [ ], \"lang_name\" : \"English\", \"term\" : \"-off\", \"status\" : \"missing\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"dance-off\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"dance-off\">\nFrom dance + -off.",
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  "etymology_text": "Etymology tree\nVulgar Latin *dantiāreder.\nAnglo-Norman dauncerbor.\nMiddle English dauncen\nEnglish dance\nEnglish -off\nEnglish dance-off\nFrom dance + -off.",
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      "form": "dance-offs",
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        "plural"
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  "lang_code": "en",
  "pos": "noun",
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          "name": "English entries referencing missing etymons",
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      "glosses": [
        "An informal dance competition between two or more dancers."
      ],
      "id": "en-dance-off-en-noun-w0HkZZv4",
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        [
          "dance",
          "dance"
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          "competition",
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          "dancer",
          "dancer"
        ]
      ]
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  "word": "dance-off"
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  "etymology_text": "Etymology tree\nVulgar Latin *dantiāreder.\nAnglo-Norman dauncerbor.\nMiddle English dauncen\nEnglish dance\nEnglish -off\nEnglish dance-off\nFrom dance + -off.",
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