"deciphered" meaning in English

{
  "forms": [
    {
      "form": "decyphered",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
      },
      "expansion": "deciphered",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1831, L[etitia] E[lizabeth] L[andon], chapter III, in Romance and Reality. […], volume III, London: Henry Colburn and Richard Bentley, […], →OCLC, page 44:",
          "text": "With some difficulty they deciphered the scrawl, and instantly proceeded to carry its advice into execution.",
          "type": "quote"
        }
      ],
      "form_of": [
        {
          "word": "decipher"
        }
      ],
      "glosses": [
        "simple past and past participle of decipher"
      ],
      "id": "en-deciphered-en-verb-V-0~jrc6",
      "links": [
        [
          "decipher",
          "decipher#English"
        ]
      ],
      "tags": [
        "form-of",
        "participle",
        "past"
      ]
    }
  ],
  "word": "deciphered"
}

{
  "forms": [
    {
      "form": "decyphered",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
      },
      "expansion": "deciphered",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English non-lemma forms",
        "English terms with quotations",
        "English verb forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1831, L[etitia] E[lizabeth] L[andon], chapter III, in Romance and Reality. […], volume III, London: Henry Colburn and Richard Bentley, […], →OCLC, page 44:",
          "text": "With some difficulty they deciphered the scrawl, and instantly proceeded to carry its advice into execution.",
          "type": "quote"
        }
      ],
      "form_of": [
        {
          "word": "decipher"
        }
      ],
      "glosses": [
        "simple past and past participle of decipher"
      ],
      "links": [
        [
          "decipher",
          "decipher#English"
        ]
      ],
      "tags": [
        "form-of",
        "participle",
        "past"
      ]
    }
  ],
  "word": "deciphered"
}