"prestamped" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "stamped"
      },
      "expansion": "pre- + stamped",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + stamped",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "prestamped (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "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 terms prefixed with pre-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2007 December 4, Carlotta Gall, “Pakistani Rivals Threaten Boycott of Elections”, in New York Times",
          "text": "She demanded that an unbiased election commission be appointed, and accused the government of downright robbery, saying that it planned to rig the results by transferring thousands of prestamped ballots to stuff ballot boxes in the provinces.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Having been stamped in advance."
      ],
      "id": "en-prestamped-en-adj-aQ0~~oXp",
      "links": [
        [
          "stamp",
          "stamp"
        ],
        [
          "in advance",
          "in advance"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "prestamped"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "stamped"
      },
      "expansion": "pre- + stamped",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + stamped",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "prestamped (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with pre-",
        "English terms with quotations",
        "English uncomparable adjectives"
      ],
      "examples": [
        {
          "ref": "2007 December 4, Carlotta Gall, “Pakistani Rivals Threaten Boycott of Elections”, in New York Times",
          "text": "She demanded that an unbiased election commission be appointed, and accused the government of downright robbery, saying that it planned to rig the results by transferring thousands of prestamped ballots to stuff ballot boxes in the provinces.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Having been stamped in advance."
      ],
      "links": [
        [
          "stamp",
          "stamp"
        ],
        [
          "in advance",
          "in advance"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "prestamped"
}