"open covers" meaning in All languages combined

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "source": "w"
        },
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          "name": "Pages with entries",
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          "source": "w"
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      ],
      "form_of": [
        {
          "word": "open cover"
        }
      ],
      "glosses": [
        "plural of open cover"
      ],
      "id": "en-open_covers-en-noun-0FeU4XyD",
      "links": [
        [
          "open cover",
          "open cover#English"
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      "tags": [
        "form-of",
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  "word": "open covers"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "word": "open cover"
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  "word": "open covers"
}