Sources and terms for dictionary data and third-party components included in or delivered with Baro Japanese Dictionary.
Copyright: Electronic Dictionary Research and Development Group (EDRDG)
License: Creative Commons Attribution-ShareAlike 4.0 International
Project: Japanese WordNet
License: NICT Japanese WordNet License. The full notice is also included in the in-app license screen.
Kanji stroke order graphics are derived from KanjiVG and are distributed under Creative Commons Attribution-ShareAlike 3.0.
yomitan-jlpt-vocab by Stephen Kraus, CC BY-SA 4.0, commit b062d4e38c4bdd0950ae1d4ec55f04b176182e03. Its JMdict mappings adapt Jonathan Waller's JLPT Resources lists (CC BY).
The JMdict IDs and community-estimated levels were converted into a numeric rank that orders reverse-lookup results and breaks ties between otherwise equal Japanese lookup results; missing evidence stays unknown. These estimates are not official JLPT vocabulary levels and are not shown as such.
MeCab IPADIC 2.7.0-20070801, Nara Institute of Science and Technology and ICOT. Its proper-noun lists were normalized into spelling, reading, name category and lexical-cost rows that help order JMnedict names; the costs are likelihood evidence, not observed frequencies. The full required notice is included in the in-app license screen.
Japan Post national postal code address data. Exact address spellings and readings supplement missing place-name readings; they are not frequency scores. Japan Post claims no copyright on the postal code data and permits redistribution.
wordfreq 3.1.1 by Robyn Speer, large Japanese word list. Data license: CC BY-SA 4.0. wordfreq includes data derived from Google Books Ngrams, the Leeds Internet Corpus, Wikipedia, ParaCrawl, OPUS OpenSubtitles 2018 (data from opensubtitles.org), SUBTLEX word lists by Marc Brysbaert et al., and statistics gathered from the Twitter streaming API.
Word frequencies were attributed to JMdict entries through their written spellings and stored as one Zipf value per entry. The value only orders reverse-lookup results of otherwise equal relevance and is not displayed. It is used from version 1.1.0.
The Japanese–Korean, Japanese–English, and proper-name databases are adaptations of the sources above. dictionary_ko/open_dictionary.db, dictionary_en/open_dictionary.db, dictionary_names/names.db, and the data they contain are distributed under CC BY-SA 4.0.
Japanese written forms and readings were selected and normalized for search. English glosses were translated and reviewed to produce concise Korean definitions; from version 1.1.0, Korean meanings that share one word for different senses also carry short distinguishing notes. Japanese WordNet was used only to check for missing senses; its definitions and example sentences were not copied. For English, source sense groups were preserved and wording was edited for clarity where needed; from version 1.1.0, English glosses that share one word for different senses also carry short distinguishing notes, and senses or glosses reviewed as belonging to other words are omitted. Original and edited definitions were indexed for reverse lookup, except source glosses removed as errors. JMnedict romanizations and name types were preserved in a shared database, Japanese readings were systematically transcribed for Korean searches, and name type labels were localized for display. Source examples were not copied.
Source snapshots: version 1.0.0 contains JMdict, KANJIDIC2, and JMnedict files retrieved on October 3, 2026 and the Japan Post data of August 31, 2026. Versions 1.1.0, 1.1.1, and 1.1.2 use the EDRDG files retrieved on October 9, 2026 and the Japan Post data of September 30, 2026. Anyone who copies, modifies, or redistributes these adaptations must retain attribution and use the same CC BY-SA 4.0 license.
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Protocol Buffers Java Lite used by Firestore is distributed under the BSD 3-Clause License. Checker Framework qualifiers and Animal Sniffer annotations are distributed under the MIT License. Their copyright notices and full license texts are also included in the app.
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