What is OrigDic (origDic)?

OrigDic is a large-scale dictionary PWA that handles not only word lookup but also meaning, pronunciation, usage examples, and learning progress on one screen. Built for future multilingual expansion, the current public release is English-Japanese focused.

Open the production PWA in your browser to try dictionary search and daily review.

Current catalog (verified 30 Aug 2026)
revision 102 / Free 1,025 words / Pro 16,771 words

Open OrigDic production PWA »

See the English vocabulary learning spotlight »

A dictionary and learning tool built in-house

OrigDic is not a service that simply republishes an off-the-shelf dictionary. From collection policy through data shaping, level mapping, search, and learning features, the dictionary set and tools are researched, designed, implemented, and verified in-house.

  • Original collection and editing: Vocabulary, meaning, part of speech, pronunciation, examples, and nuance organized for learning goals.
  • Research-based level mapping: CEFR, Eiken grades, school levels, and related mappings researched and shown as learning guides.
  • Repeated verification: Dictionary data, search results, updates, read-aloud, and quizzes checked on real devices and with E2E tests.
  • Dictionary tools built in-house: SQLite, OPFS, PWA, and delta updates combined so search through review lives in one environment.

Where level information and learning materials reference public sources, we state sources and licenses and organize them to fit OrigDic’s structure.

OrigDic on screen

OrigDic ready screen showing four entry points: word search, practice quizzes, playback study, and example playback
Four entry points: Go beyond search to practice, playback study, and example playback.
OrigDic search results for start showing pronunciation, part of speech, meaning, nuance, and example sentences
Search results: Meaning, pronunciation, part of speech, and examples on one screen.
OrigDic settings screen with auto read-aloud, playback speed, word list size, and tags
Tune your study environment: Adjust read-aloud, speed, and display tags per device.

Screens captured anonymously from the production PWA on 30 Aug 2026. Display may change with public releases.

Overview and audience

Suited for English learners, classroom or self-study vocabulary checks, and anyone who wants meaning and pronunciation together. Works for quick lookups and for reviewing words later.

  • Those who want meaning, usage, and pronunciation together
  • Those who organize study range by CEFR or school level
  • Those who use history and favorites for self-paced review
  • Those who prefer browser or smartphone use without installing an app

Search

Look up one word from many angles

Search results show more than definitions — everything needed for learning and daily use. Current public content and display scope are confirmed in the production PWA.

  • Meaning: Japanese equivalents for English headwords
  • Part of speech: Grammatical category such as noun or verb
  • IPA: Pronunciation in phonetic symbols
  • Sentence patterns: Clues to how verbs and phrases are used
  • Nuance: Notes on usage and context
  • Example sentences: Meaning and usage in real context

Pronunciation and read-aloud

Check pronunciation visually with IPA and audibly with device read-aloud. Hear headwords and examples to link spelling, meaning, and sound.

Read-aloud support and voice quality depend on browser, OS, and device speech settings.

History and learning features

Turn looked-up words into the next study step

Go beyond search: review from history and favorites. Switch among practice modes for quick checks or longer review sessions.

  • History: Recently looked-up words in a list
  • Favorites: Save words you want to revisit
  • 4-choice: Easy multiple-choice practice
  • 8-choice: Harder practice with more options
  • Fill-in-the-blank: Check context with examples and study notes
  • Playback study: Listen to words and examples in sequence
  • Points: Record learning achievements
OrigDic list screen with search history, favorites, CEFR filters, and practice buttons
Review from lists: Filter by history, favorites, CEFR, and more, then start practice or playback study.

Level display

Guides for choosing study range

When picking vocabulary, OrigDic shows CEFR with corresponding Eiken grades, plus school level and COREWO4500 information as guides. These are planning aids, not guarantees of individual proficiency or exam results.

CEFR and Eiken grades
Common European Framework levels with corresponding Eiken grade guides: A1 (Grade 5), A2 (Grade 4), B1 (Grade 3), B2 (Grade Pre-1), C1 (Grade 1).
School level
Guide aligned with Japanese study stages and exam preparation.
COREWO4500
Rank and band information from the important vocabulary list for Japanese high school students.

Planned future packs

OrigDic plans additional packs to broaden dictionary direction and learning goals. Beyond today’s English-Japanese focus, we are considering:

  • Japanese–English dictionary packLook up Japanese to find English expressions and examples.
  • Multilingual dictionary packExpand beyond English to study vocabulary in multiple languages.
  • Eiken practice packVocabulary checks and drills aligned with Eiken grades and study range.
  • TOEIC practice packDrills focused on TOEIC-friendly vocabulary and question styles.

Release timing, languages, target grades or score bands, and terms may change. Check the production PWA when packs ship.

Planned future platforms

Today OrigDic is a browser PWA. We plan to support more platforms for more use cases:

  • Browser extensionLook up words while reading web pages and connect to study.
  • iPhone and iPad appsUse on the go without picking a fixed study location.
  • Android appsUse on Android phones and tablets.

Timing, stores, supported OS, feature scope, and pricing may change. See official announcements at launch.

PWA, on-device storage, and delta updates

OrigDic runs as a PWA in supported browsers. Dictionary packs download on first use and are stored on the device. On update, the catalog is checked and you can choose delta updates when available.

  • Browser use; add to home screen on supported devices
  • After initial pack download, data is read from local storage
  • Delta updates available when revision changes
  • Large updates may show guidance depending on connection

Free and Pro

The current public release offers free and Pro dictionary packs. Catalog word counts at verification: Free 1,025 words, Pro 16,771 words. Content and terms may change in future updates.

Pro terms, pricing, authentication, payment, and regions are not stated on this intro page — see the production PWA.

OrigDic Pro information screen showing monthly and one-time purchase plans with purchase buttons
Pro information: Confirm pricing and terms in the latest production PWA.

View Pro information in the production PWA »

Privacy and network scope

This intro page does not publish dictionary data, credentials, API keys, decryption keys, payment secrets, or authentication forms.

  • Opening the production PWA from here goes to https://dict.fujigoma.com/.
  • Dictionary packs and delta updates require network access from the production PWA.
  • Search and study data are stored on-device by default. See the production PWA and your browser settings for details.
  • For Pro authentication and payment, follow guidance in the production PWA and each service’s terms.

Sources and acknowledgments

OrigDic level information and learning materials use the following. Please respect each license and attribution.

  • CEFR-J Vocabulary Profile / Octanove Vocabulary Profile (CC BY-SA 4.0)
  • COREWO4500: Ishikawa Shinichiro Laboratory / Kobe University, CC BY 4.0. Source page
  • LuizMelo Pet Cats Pack / Pet Dogs Pack (CC0)

This page introduces the production PWA; it does not redistribute dictionary data.

Try OrigDic

Confirm current features and display in the live PWA.

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