Luminous E-J Dictionary
An in-app-purchase edition of Kenkyusha's Luminous English–Japanese and Japanese–English dictionaries, each with about 100,000 entries, plus audio.
At a glance
Kenkyusha’s Luminous English–Japanese and Japanese–English dictionaries in one app, each with about 100,000 entries, enhanced with Longman British and American audio.
| Category | English–Japanese Dictionaries |
|---|---|
| Languages | English–Japanese |
| Platforms | iPad/iPhone |
| Dictionary source | 研究社 |
| Developer | Enfour, Inc. |
Luminous English–Japanese and Japanese–English Dictionary (ルミナス英和・和英辞典) combines content from Kenkyusha, a Japanese publisher founded in 1907, with Longman audio from Pearson in the UK. The result is a two-way dictionary app aimed at everyone from students preparing for university entrance exams to working professionals.
Each direction contains around 100,000 entries and more than 50,000 usage examples. The English–Japanese side covers everyday, current-affairs, and scientific vocabulary, with notes on grammar, usage, collocations, paraphrases, and etymology, and flags about 2,000 frequent TOEIC® words and phrases. The Japanese–English side covers a wide range of modern and traditional vocabulary, with short English explanations of uniquely Japanese culture and tips on turning Japanese ideas into natural English.
The app adds around 90,000 British and American pronunciations from the Longman series, plus learning tools such as flashcards and iCloud bookmarks.
Key features
- About 100,000 entries each for English–Japanese and Japanese–English
- 50,000+ usage examples in each direction
- Around 90,000 Longman British and American audio files
- TOEIC® high-frequency words marked
- Incremental, wildcard, and spelling-suggestion search
- Flashcards, bookmarks with notes, iCloud, and sharing
| Category | English–Japanese Dictionaries |
|---|---|
| Languages | English–Japanese |
| Platforms | iPad/iPhone |
| Dictionary source | 研究社 |
| Version | 18.0 |
| Updated | 2026-10-12 |
| Rating | 4.4 / 5 (107) |
| Developer | Enfour, Inc. |
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