"參" meaning in Vietnamese

{
  "forms": [
    {
      "form": "tham",
      "tags": [
        "Hán-Nôm"
      ]
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "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"
        }
      ],
      "id": "en-參-vi-character-47DEQpj8",
      "raw_tags": [
        "han"
      ],
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "word": "參"
}

{
  "forms": [
    {
      "form": "tham",
      "tags": [
        "Hán-Nôm"
      ]
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "Vietnamese Han characters",
        "Vietnamese Han characters with unconfirmed readings",
        "Vietnamese lemmas",
        "Vietnamese links with redundant wikilinks",
        "Vietnamese numeral symbols"
      ],
      "raw_tags": [
        "han"
      ],
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "word": "參"
}