"謹賀新年" meaning in Japonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Expressions en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Interjections en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en japonais issus d’un mot en chinois classique",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Japonais",
      "orig": "japonais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du chinois classique. Composé de 謹 (« prudemment »), 賀 (« célébrer ») et 新年 (« nouvelle année »)."
  ],
  "forms": [
    {
      "form": "きんがしんねん",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "kinga shinnen",
      "tags": [
        "transcription"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "intj",
  "pos_title": "Interjection",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Termes littéraires en japonais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Bonne année."
      ],
      "id": "fr-謹賀新年-ja-intj-bL7Lonvd",
      "tags": [
        "literary"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\kiŋ.ɡa.ɕin.neɴ\\"
    }
  ],
  "synonyms": [
    {
      "word": "あけましておめでとう"
    },
    {
      "word": "あけましておめでとうございます"
    },
    {
      "word": "賀正"
    }
  ],
  "word": "謹賀新年"
}

{
  "categories": [
    "Expressions en japonais",
    "Interjections en japonais",
    "Mots en japonais issus d’un mot en chinois classique",
    "japonais"
  ],
  "etymology_texts": [
    "Du chinois classique. Composé de 謹 (« prudemment »), 賀 (« célébrer ») et 新年 (« nouvelle année »)."
  ],
  "forms": [
    {
      "form": "きんがしんねん",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "kinga shinnen",
      "tags": [
        "transcription"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "intj",
  "pos_title": "Interjection",
  "senses": [
    {
      "categories": [
        "Termes littéraires en japonais"
      ],
      "glosses": [
        "Bonne année."
      ],
      "tags": [
        "literary"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\kiŋ.ɡa.ɕin.neɴ\\"
    }
  ],
  "synonyms": [
    {
      "word": "あけましておめでとう"
    },
    {
      "word": "あけましておめでとうございます"
    },
    {
      "word": "賀正"
    }
  ],
  "word": "謹賀新年"
}