"Beaufort cipher" meaning in English

{
  "etymology_text": "Created by Sir Francis Beaufort.",
  "forms": [
    {
      "form": "Beaufort ciphers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Beaufort cipher (plural Beaufort ciphers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
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          "source": "w"
        }
      ],
      "glosses": [
        "A substitution cipher similar to the Vigenère cipher, with a slightly modified enciphering mechanism and tableau."
      ],
      "id": "en-Beaufort_cipher-en-noun-akcHyXfI",
      "links": [
        [
          "substitution cipher",
          "substitution cipher"
        ],
        [
          "Vigenère cipher",
          "Vigenère cipher"
        ],
        [
          "tableau",
          "tableau"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-aɪfə(ɹ)"
    }
  ],
  "word": "Beaufort cipher"
}

{
  "etymology_text": "Created by Sir Francis Beaufort.",
  "forms": [
    {
      "form": "Beaufort ciphers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Beaufort cipher (plural Beaufort ciphers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Rhymes:English/aɪfə(ɹ)"
      ],
      "glosses": [
        "A substitution cipher similar to the Vigenère cipher, with a slightly modified enciphering mechanism and tableau."
      ],
      "links": [
        [
          "substitution cipher",
          "substitution cipher"
        ],
        [
          "Vigenère cipher",
          "Vigenère cipher"
        ],
        [
          "tableau",
          "tableau"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-aɪfə(ɹ)"
    }
  ],
  "word": "Beaufort cipher"
}