"midnight suns" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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          "ref": "1920, Illustrated London News, volume 67, page 1065:",
          "text": "Eight midnight suns. I photographed the sun every twenty minutes, beginning at 11 p.m., and finishing at 1:20 a.m.",
          "type": "quote"
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        {
          "ref": "2010, Roger Norum, The Rough Guide to Finland:",
          "text": "Fox fires and midnight suns",
          "type": "quote"
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        {
          "ref": "2011, Dan Burstein, Arne de Keijzer, John-Henri Holmberg, The Tattooed Girl, page 114:",
          "text": "Crime is not the first thing that comes to mind at the thought of Sweden or Norway. More likely it's fantastic fjords, social democracies, IKEA, Saab, H&M, saunas, pine forests, white interiors, Ingmar Bergman, dark winters, midnight suns....",
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      "form_of": [
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      "glosses": [
        "plural of midnight sun"
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      "tags": [
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  "word": "midnight suns"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1920, Illustrated London News, volume 67, page 1065:",
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        },
        {
          "ref": "2010, Roger Norum, The Rough Guide to Finland:",
          "text": "Fox fires and midnight suns",
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        },
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          "ref": "2011, Dan Burstein, Arne de Keijzer, John-Henri Holmberg, The Tattooed Girl, page 114:",
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        "plural of midnight sun"
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