"兆" meaning in Vietnamese

{
  "forms": [
    {
      "form": "triệu",
      "tags": [
        "Hán-Nôm"
      ]
    },
    {
      "form": "diệu",
      "tags": [
        "Hán-Nôm"
      ]
    },
    {
      "form": "điềm",
      "tags": [
        "Hán-Nôm"
      ]
    },
    {
      "form": "giệu",
      "tags": [
        "Hán-Nôm"
      ]
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Chinese_terms_with_historical_senses",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Vietnamese numeral symbols",
          "parents": [
            "Numeral symbols",
            "Symbols",
            "Letters, symbols, and punctuation",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "million, mega-"
      ],
      "id": "en-兆-vi-character-4S8zdJgV",
      "links": [
        [
          "mega-",
          "mega-"
        ]
      ],
      "raw_tags": [
        "han"
      ]
    }
  ],
  "word": "兆"
}

{
  "forms": [
    {
      "form": "triệu",
      "tags": [
        "Hán-Nôm"
      ]
    },
    {
      "form": "diệu",
      "tags": [
        "Hán-Nôm"
      ]
    },
    {
      "form": "điềm",
      "tags": [
        "Hán-Nôm"
      ]
    },
    {
      "form": "giệu",
      "tags": [
        "Hán-Nôm"
      ]
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "Chinese_terms_with_historical_senses",
        "Vietnamese Han characters",
        "Vietnamese Han characters with unconfirmed readings",
        "Vietnamese lemmas",
        "Vietnamese links with redundant wikilinks",
        "Vietnamese numeral symbols"
      ],
      "glosses": [
        "million, mega-"
      ],
      "links": [
        [
          "mega-",
          "mega-"
        ]
      ],
      "raw_tags": [
        "han"
      ]
    }
  ],
  "word": "兆"
}