"участник" meaning in Russian

{
  "forms": [
    {
      "form": "участник"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "related": [
    {
      "word": "участвовать"
    },
    {
      "word": "участие"
    },
    {
      "word": "участница"
    }
  ],
  "senses": [
    {
      "glosses": [
        "μέτοχος, συμμέτοχος"
      ],
      "id": "el-участник-ru-noun-o~lHYOwe"
    },
    {
      "glosses": [
        "χρήστης"
      ],
      "id": "el-участник-ru-noun-r~jQ7~00"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Αθλητισμός (ρωσικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "συναγωνιστής, μέλος"
      ],
      "id": "el-участник-ru-noun-s3bQsH12",
      "raw_tags": [
        "αθλητισμός"
      ]
    }
  ],
  "word": "участник"
}

{
  "forms": [
    {
      "form": "участник"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "related": [
    {
      "word": "участвовать"
    },
    {
      "word": "участие"
    },
    {
      "word": "участница"
    }
  ],
  "senses": [
    {
      "glosses": [
        "μέτοχος, συμμέτοχος"
      ]
    },
    {
      "glosses": [
        "χρήστης"
      ]
    },
    {
      "categories": [
        "Αθλητισμός (ρωσικά)"
      ],
      "glosses": [
        "συναγωνιστής, μέλος"
      ],
      "raw_tags": [
        "αθλητισμός"
      ]
    }
  ],
  "word": "участник"
}