"前夜祭" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "前夜",
        "2": "ぜんや",
        "3": "祭",
        "4": "-さい"
      },
      "expansion": "前夜(ぜんや) (zen'ya) + 祭(さい) (-sai)",
      "name": "ja-com"
    }
  ],
  "etymology_text": "前夜(ぜんや) (zen'ya) + 祭(さい) (-sai)",
  "forms": [
    {
      "form": "前夜祭",
      "ruby": [
        [
          "前",
          "ぜん"
        ],
        [
          "夜",
          "や"
        ],
        [
          "祭",
          "さい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "zen'yasai",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ぜんやさい"
      },
      "expansion": "前(ぜん)夜(や)祭(さい) • (zen'yasai)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms read with on'yomi",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms suffixed with 祭 read as さい",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 3 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with Nakadaka pitch accent (Tōkyō)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "roman": "kōyasai",
          "ruby": [
            [
              "後夜祭",
              "こうやさい"
            ]
          ],
          "word": "後夜祭"
        }
      ],
      "glosses": [
        "festivities that take place the night before a main event; eve"
      ],
      "id": "en-前夜祭-ja-noun-bfKNrJZn",
      "links": [
        [
          "festiviti",
          "festivity"
        ],
        [
          "night",
          "night"
        ],
        [
          "before",
          "before"
        ],
        [
          "main",
          "main"
        ],
        [
          "event",
          "event"
        ],
        [
          "eve",
          "eve"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "ぜんやさい"
    },
    {
      "ipa": "[d͡zẽ̞ɰ̃ja̠sa̠i]"
    }
  ],
  "word": "前夜祭"
}

{
  "coordinate_terms": [
    {
      "roman": "kōyasai",
      "ruby": [
        [
          "後夜祭",
          "こうやさい"
        ]
      ],
      "word": "後夜祭"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "前夜",
        "2": "ぜんや",
        "3": "祭",
        "4": "-さい"
      },
      "expansion": "前夜(ぜんや) (zen'ya) + 祭(さい) (-sai)",
      "name": "ja-com"
    }
  ],
  "etymology_text": "前夜(ぜんや) (zen'ya) + 祭(さい) (-sai)",
  "forms": [
    {
      "form": "前夜祭",
      "ruby": [
        [
          "前",
          "ぜん"
        ],
        [
          "夜",
          "や"
        ],
        [
          "祭",
          "さい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "zen'yasai",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ぜんやさい"
      },
      "expansion": "前(ぜん)夜(や)祭(さい) • (zen'yasai)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese compound terms",
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms read with on'yomi",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms spelled with 前 read as ぜん",
        "Japanese terms spelled with 夜 read as や",
        "Japanese terms spelled with 祭 read as さい",
        "Japanese terms suffixed with 祭 read as さい",
        "Japanese terms with 3 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation with pitch accent",
        "Japanese terms with Nakadaka pitch accent (Tōkyō)",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "glosses": [
        "festivities that take place the night before a main event; eve"
      ],
      "links": [
        [
          "festiviti",
          "festivity"
        ],
        [
          "night",
          "night"
        ],
        [
          "before",
          "before"
        ],
        [
          "main",
          "main"
        ],
        [
          "event",
          "event"
        ],
        [
          "eve",
          "eve"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "ぜんやさい"
    },
    {
      "ipa": "[d͡zẽ̞ɰ̃ja̠sa̠i]"
    }
  ],
  "word": "前夜祭"
}