"長らく" meaning in Japanese

{
  "forms": [
    {
      "form": "長らく",
      "ruby": [
        [
          "長",
          "なが"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nagaraku",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "adverb",
        "2": "ながらく"
      },
      "expansion": "長(なが)らく • (nagaraku)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "adv",
  "senses": [
    {
      "glosses": [
        "long"
      ],
      "id": "en-長らく-ja-adv-~GbwIcZ9",
      "links": [
        [
          "long",
          "long"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Japanese terms read with kun'yomi",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Japanese terms with 1 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "for a long time"
      ],
      "id": "en-長らく-ja-adv-sbu~-kMM"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "roman": "nagai koto",
      "ruby": [
        [
          "長",
          "なが"
        ]
      ],
      "word": "長いこと"
    }
  ],
  "word": "長らく"
}

{
  "categories": [
    "Japanese adverbs",
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese terms read with kun'yomi",
    "Japanese terms spelled with second grade kanji",
    "Japanese terms spelled with 長 read as なが",
    "Japanese terms with 1 kanji",
    "Japanese terms with non-redundant non-automated sortkeys",
    "Japanese terms with redundant sortkeys",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "長らく",
      "ruby": [
        [
          "長",
          "なが"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nagaraku",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "adverb",
        "2": "ながらく"
      },
      "expansion": "長(なが)らく • (nagaraku)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "adv",
  "senses": [
    {
      "glosses": [
        "long"
      ],
      "links": [
        [
          "long",
          "long"
        ]
      ]
    },
    {
      "glosses": [
        "for a long time"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "nagai koto",
      "ruby": [
        [
          "長",
          "なが"
        ]
      ],
      "word": "長いこと"
    }
  ],
  "word": "長らく"
}