"undeclare" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "declare"
      },
      "expansion": "un- + declare",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + declare",
  "forms": [
    {
      "form": "undeclares",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "undeclaring",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "undeclared",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "undeclared",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undeclare (third-person singular simple present undeclares, present participle undeclaring, simple past and past participle undeclared)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "ref": "2007 February 4, Noah Feldman, “Whose War Powers?”, in New York Times",
          "text": "The Constitution gives Congress the power to declare war; but does that include the power to undeclare it?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To reverse the process of declaring; to unsay."
      ],
      "id": "en-undeclare-en-verb-nwCWAadj",
      "links": [
        [
          "declaring",
          "declare"
        ],
        [
          "unsay",
          "unsay"
        ]
      ],
      "raw_glosses": [
        "(transitive) To reverse the process of declaring; to unsay."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Programming",
          "orig": "en:Programming",
          "parents": [
            "Computing",
            "Software engineering",
            "Technology",
            "Computer science",
            "Engineering",
            "Software",
            "All topics",
            "Sciences",
            "Applied sciences",
            "Media",
            "Fundamental",
            "Communication"
          ],
          "source": "w"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "36 64",
          "kind": "other",
          "name": "English terms prefixed with un-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To revoke the declaration of (a variable, namespace, etc.) so that it is no longer available."
      ],
      "id": "en-undeclare-en-verb--nUtfGoK",
      "links": [
        [
          "programming",
          "programming#Noun"
        ],
        [
          "revoke",
          "revoke"
        ],
        [
          "declaration",
          "declaration"
        ],
        [
          "variable",
          "variable"
        ],
        [
          "namespace",
          "namespace"
        ]
      ],
      "raw_glosses": [
        "(transitive, programming) To revoke the declaration of (a variable, namespace, etc.) so that it is no longer available."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "programming",
        "sciences"
      ]
    }
  ],
  "word": "undeclare"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English terms prefixed with un-",
    "English verbs"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "declare"
      },
      "expansion": "un- + declare",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + declare",
  "forms": [
    {
      "form": "undeclares",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "undeclaring",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "undeclared",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "undeclared",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undeclare (third-person singular simple present undeclares, present participle undeclaring, simple past and past participle undeclared)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English terms with quotations",
        "English transitive verbs"
      ],
      "examples": [
        {
          "ref": "2007 February 4, Noah Feldman, “Whose War Powers?”, in New York Times",
          "text": "The Constitution gives Congress the power to declare war; but does that include the power to undeclare it?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To reverse the process of declaring; to unsay."
      ],
      "links": [
        [
          "declaring",
          "declare"
        ],
        [
          "unsay",
          "unsay"
        ]
      ],
      "raw_glosses": [
        "(transitive) To reverse the process of declaring; to unsay."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        "English transitive verbs",
        "en:Programming"
      ],
      "glosses": [
        "To revoke the declaration of (a variable, namespace, etc.) so that it is no longer available."
      ],
      "links": [
        [
          "programming",
          "programming#Noun"
        ],
        [
          "revoke",
          "revoke"
        ],
        [
          "declaration",
          "declaration"
        ],
        [
          "variable",
          "variable"
        ],
        [
          "namespace",
          "namespace"
        ]
      ],
      "raw_glosses": [
        "(transitive, programming) To revoke the declaration of (a variable, namespace, etc.) so that it is no longer available."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "programming",
        "sciences"
      ]
    }
  ],
  "word": "undeclare"
}