"substitution ciphers" meaning in All languages combined

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  "lang_code": "en",
  "pos": "noun",
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        {
          "word": "substitution cipher"
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        "plural of substitution cipher"
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      "id": "en-substitution_ciphers-en-noun-4UQv~VUO",
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  "word": "substitution ciphers"
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  "word": "substitution ciphers"
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