"一字千金" meaning in 日語

{
  "categories": [
    {
      "kind": "other",
      "name": "使用音讀的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "寫作「一」讀作「いち」的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "寫作「千」讀作「せん」的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "寫作「字」讀作「じ」的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "寫作「金」讀作「きん」的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語四字熟語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有4個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有一年級漢字的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有四個漢字的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有國際音標的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有多個讀音的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "一字千金",
      "ruby": [
        [
          "一",
          "いち"
        ],
        [
          "字",
          "じ"
        ],
        [
          "千",
          "せん"
        ],
        [
          "金",
          "きん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ichiji senkin",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "日語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日語俗語",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "非常有價值的文字"
      ],
      "id": "zh-一字千金-ja-noun-n2yvwulJ",
      "tags": [
        "idiomatic"
      ]
    },
    {
      "glosses": [
        "極佳的書法字跡"
      ],
      "id": "zh-一字千金-ja-noun-W-lNsle8"
    },
    {
      "glosses": [
        "無可比擬的恩惠"
      ],
      "id": "zh-一字千金-ja-noun-LV6qbCfw"
    }
  ],
  "sounds": [
    {
      "other": "いちじせんきん",
      "raw_tags": [
        "東京"
      ],
      "roman": "[ìchíꜜjì sèǹkìǹ]",
      "tags": [
        "Nakadaka"
      ]
    },
    {
      "ipa": "[it͡ɕiʑi sẽ̞ŋʲkʲĩɴ]"
    }
  ],
  "word": "一字千金"
}

{
  "categories": [
    "使用音讀的日語詞",
    "寫作「一」讀作「いち」的日語詞",
    "寫作「千」讀作「せん」的日語詞",
    "寫作「字」讀作「じ」的日語詞",
    "寫作「金」讀作「きん」的日語詞",
    "日語名詞",
    "日語四字熟語",
    "日語詞元",
    "有4個詞條的頁面",
    "有一年級漢字的日語詞",
    "有四個漢字的日語詞",
    "有國際音標的日語詞",
    "有多個讀音的日語詞",
    "有詞條的頁面"
  ],
  "forms": [
    {
      "form": "一字千金",
      "ruby": [
        [
          "一",
          "いち"
        ],
        [
          "字",
          "じ"
        ],
        [
          "千",
          "せん"
        ],
        [
          "金",
          "きん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ichiji senkin",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "日語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        "日語俗語"
      ],
      "glosses": [
        "非常有價值的文字"
      ],
      "tags": [
        "idiomatic"
      ]
    },
    {
      "glosses": [
        "極佳的書法字跡"
      ]
    },
    {
      "glosses": [
        "無可比擬的恩惠"
      ]
    }
  ],
  "sounds": [
    {
      "other": "いちじせんきん",
      "raw_tags": [
        "東京"
      ],
      "roman": "[ìchíꜜjì sèǹkìǹ]",
      "tags": [
        "Nakadaka"
      ]
    },
    {
      "ipa": "[it͡ɕiʑi sẽ̞ŋʲkʲĩɴ]"
    }
  ],
  "word": "一字千金"
}