This site includes data derived from SudachiDict.

  SudachiDict
  Copyright (c) 2017-2025 Works Applications Co., Ltd.
  Licensed under the Apache License, Version 2.0
  https://github.com/WorksApplications/SudachiDict
  http://www.apache.org/licenses/LICENSE-2.0

Used: src/data/words.v3.tsv.gz (common nouns extracted from small_lex and core_lex, 2025-05-15 release,
      with readings normalized for the shiritori rules of this site). See scripts/build-sudachi-nouns.py.

This site also uses the JMdict dictionary file (JMdict_e) to flag common words.

  JMdict / EDICT
  Copyright (c) Electronic Dictionary Research and Development Group (EDRDG)
  Licensed under Creative Commons Attribution-ShareAlike 4.0 International
  https://www.edrdg.org/wiki/index.php/JMdict-EDICT_Dictionary_Project
  https://www.edrdg.org/edrdg/licence.html

Used: only the priority markers (ichi1/news1/spec1/gai1) to set the "common" flag in
      src/data/words.v3.tsv.gz. See scripts/build-sudachi-nouns.py.