"знаток" meaning in Russe

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Lemmes en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en russe suffixés avec -ок",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Russe",
      "orig": "russe",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "знаточество"
    }
  ],
  "etymology_texts": [
    "Dérivé de знать, znať (« connaitre, savoir »), avec le suffixe -ок, -ok."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "znatok",
    "masculin animé"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en russe",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Connaisseur, personne qui s’y connait, expert."
      ],
      "id": "fr-знаток-ru-noun-2g8cgNH0"
    }
  ],
  "sounds": [
    {
      "ipa": "\\znɐˈtok\\"
    }
  ],
  "synonyms": [
    {
      "word": "эксперт"
    }
  ],
  "word": "знаток"
}

{
  "categories": [
    "Dérivations en russe",
    "Lemmes en russe",
    "Mots en russe suffixés avec -ок",
    "Noms communs en russe",
    "russe"
  ],
  "derived": [
    {
      "word": "знаточество"
    }
  ],
  "etymology_texts": [
    "Dérivé de знать, znať (« connaitre, savoir »), avec le suffixe -ок, -ok."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "znatok",
    "masculin animé"
  ],
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en russe"
      ],
      "glosses": [
        "Connaisseur, personne qui s’y connait, expert."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\znɐˈtok\\"
    }
  ],
  "synonyms": [
    {
      "word": "эксперт"
    }
  ],
  "word": "знаток"
}