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Nihongo - Japanese Dictionary

By Serpenti Sei LLC

This app is only available on the App Store for iOS devices.


Nihongo is a Japanese-English dictionary, flashcard app, and reading assistant, designed to make the best use of the time you dedicate to studying Japanese.

Our dictionary is made to find what you're looking for fast, with the words Japanese speakers actually use at the top of every search result, and every word marked as "common", "uncommon", or "rare".

"Clippings", our reading assistant, is what makes Nihongo stand apart from other dictionaries. Paste in Japanese text from a website, email, an eBook, or anywhere else, and we'll add furigana or romaji to every word. We also enable you to tap on any word to see its definition. This will truly change the way you read Japanese. And now, you can get the same experience right in Safari using our Safari extension.

Personal experience (as well as a good deal of research in second-language acquisition) has shown us that the words that you're most likely to remember are the words that you're encountering naturally. To this end Nihongo automatically draws from your search history and clippings to compile flashcard decks filled with words for which you already have context. This makes it easy to study both the words you looked up during Japanese class, and those that appear in your favorite song or videogame. And by adding notes to the back of flashcards you can further connect each vocabulary word to your personal contextual understanding.

Kanji flashcards prompt you to draw the missing kanji from the words you're studying, creating stronger connections between the characters and their real-world use. Built-in kanji decks give you 2 or 3 key words to study for each kanji.

Nihongo has features to serve both beginning and advanced learners. Our commonality ratings help beginners to avoid using words that aren't often used by native speakers of Japanese. Audio pronunciations as well as the ability to add romaji throughout the app allows anyone to read Japanese without needing to know the Japanese alphabets.

On the other hand, if you're a professional working at a Japanese office, Clippings can help you to read emails faster and lets you return later to study the words you didn't know. Or, use Nihongo to read an eBook, and tap on words to quickly look up definitions without breaking your flow.

* Over 170,000 words, 165,000 example sentences, and 6000 kanji entries.
* Every word clearly marked as common, uncommon, or rare.
* Add your own notes to any dictionary entry.
* Quickly identify transitive/intransitive word pairs.
* Audio pronunciations of words and example sentences (Requires Nihongo Pro)

* Adds furigana or romaji to text pasted into the app.
* Tap on any word to see its definition without leaving the clipping.
* All clippings saved for later reading.
* Flashcard deck automatically created so you can study the new words in a clipping.
* Display text horizontally or vertically.
* Have Nihongo read any clipping out loud. (Requires Nihongo Pro)

* Flashcards automatically generated from words you lookup in the dictionary or paste into the app.
* Nihongo learns what words you know, and won't bother you again with words you've mastered.
* Customizable flashcards allow you to add furigana and/or romaji to words.
* Built-in kanji flashcard decks up through Middle School.
* Intuitive spaced repetition flashcard system for vocabulary and kanji drawing.
* Level up flashcards by studying every day.
* No penalty for missing a day of study, come back anytime.

* Search for words, kanji, and example sentences all in one place.
* Search using English, Japanese, or romaji.
* Search for kanji using radicals and stroke counts.
* Supports searching for conjugated words in both English and Japanese.

* Add furigana or romaji to webpages.
* Tap on words to see definition within Safari.

What's New in Version 1.9.5

* Fix an issue where new clippings could not be edited on iPhone X.


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Customer Reviews

Best Japanese learning app

This is the best Japanese learning tool I know of. The dictionary is great. But if you only use it as a dictionary, then you’re badly underestimating the power of this tool. With the clipping analysis and safari extension, this is a self contained learning platform, where you can read, learn new words, and review them by flash cards later on. It’s worth upgrading to pro version.

One thing needs to be improved is to add a sync feature. It would be good to be able to sync clippings and word decks across iPhone and iPad.

Nihongo - Japanese Dictionary
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Reference
  • Updated:
  • Version: 1.9.5
  • Size: 232 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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Top In-App Purchases

  1. Nihongo Pro$7.99