JAPANESE STUDY SYSTEMKOTOWA 词和
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Kanji collection2,383
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SILVER ERA · ことばを、少しずつ。
JLPT BANDN5 BEGINNER → N1 ADVANCED

役やく立だつ

N1
やくだつ yakudatsu
  1. to be useful
  2. to be helpful
  3. to serve the purpose
godan verbintransitive

Chinese meanings

有用

Examples

  • 英えい語ごは商しょう業ぎょうにおいて役やく立だつ。
    English is useful in commerce.
    英语在商业中有用。
  • 一ひと言ことで言いえば彼かの女じょは役やく立だたずなのだ。
    In a word, she isn't any use.
    总之,她是个没用的人。
Use this entry in code
import { getVocabById } from 'kotowa';
getVocabById('dc0658901e'); // 役立つ
{
  "id": "dc0658901e",
  "word": "役立つ",
  "reading": "やくだつ",
  "romaji": "yakudatsu",
  "meanings": [
    "to be useful",
    "to be helpful",
    "to serve the purpose"
  ],
  "level": "N1",
  "pos": [
    "v5t",
    "vi"
  ],
  "jmdict_id": 1538090,
  "examples": [
    {
      "ja": "英語は商業において役立つ。",
      "furigana": "{英語|えいご}は{商業|しょうぎょう}において{役立|やくだ}つ。",
      "en": "English is useful in commerce.",
      "tatoeba_id": 189118
    },
    {
      "ja": "一言で言えば彼女は役立たずなのだ。",
      "furigana": "{一言|ひとこと}で{言|い}えば{彼女|かのじょ}は{役立|やくだ}たずなのだ。",
      "en": "In a word, she isn't any use.",
      "tatoeba_id": 190649
    }
  ],
  "zh": {
    "status": "reviewed",
    "source_hash": "9ba8aec88fffb262341052e48837a002b2ccd84189ac2001f0c97cebae73a24d",
    "meanings": [
      "有用"
    ],
    "examples": [
      {
        "ja": "英語は商業において役立つ。",
        "zh": "英语在商业中有用。"
      },
      {
        "ja": "一言で言えば彼女は役立たずなのだ。",
        "zh": "总之,她是个没用的人。"
      }
    ],
    "references": [
      "upstream vocab/n1/dc0658901e",
      "JMdict ent_seq 1538090; checked against downloaded JMdict_e.gz on 2026-10-28",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "272b87563ad43b4efdb29cd739b07ec66137659fa5440250640cc5ecb7c47e27"
  }
}