"樂理" meaning in Vietnamien

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en vietnamien issus d’un mot en chinois archaïque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en vietnamien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vietnamien",
      "orig": "vietnamien",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du chinois archaïque."
  ],
  "lang": "Vietnamien",
  "lang_code": "vi-chunom",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "nhạc lý"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en vietnamien de la musique",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en vietnamien des sciences",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Théorie de la musique."
      ],
      "id": "fr-樂理-vi-chunom-noun-mDhr7XcD",
      "topics": [
        "music",
        "science"
      ]
    }
  ],
  "word": "樂理"
}

{
  "categories": [
    "Mots en vietnamien issus d’un mot en chinois archaïque",
    "Noms communs en vietnamien",
    "vietnamien"
  ],
  "etymology_texts": [
    "Du chinois archaïque."
  ],
  "lang": "Vietnamien",
  "lang_code": "vi-chunom",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "nhạc lý"
  ],
  "senses": [
    {
      "categories": [
        "Lexique en vietnamien de la musique",
        "Lexique en vietnamien des sciences"
      ],
      "glosses": [
        "Théorie de la musique."
      ],
      "topics": [
        "music",
        "science"
      ]
    }
  ],
  "word": "樂理"
}