Whether you’re just beginning your Japanese study or already at an advanced level, chances are you will still encounter unfamiliar words that leave you reaching for a Japanese dictionary. Whether it’s through an app or a traditional paper dictionary, having the right tool can make all the difference.
As interest in the Japanese language continues to grow, despite its reputation as one of the most challenging languages to learn does the number of available Japanese dictionaries. But with so many options out there, how do you choose the right one? In this article, we will be reviewing the most popular Japanese dictionaries across categories, from paper dictionaries to smartphone apps.
What Makes a Good Japanese Dictionary?
A good Japanese-to-English dictionary is a must-have tool for all Japanese learners. It helps us to learn Japanese faster and more efficiently. It must have 100% accuracy and be up-to-date, meaning that it must be updated every few years. Looking at the learner level the dictionary is at is also very important, as a beginner isn’t going to be using or learning the same words as someone getting ready to take the JLPT N1.
And lastly, having key features in the dictionary to help users retain more of what they are reading will be useful. This could include having some basic grammar worksheet usage. So, depending on what you are looking for, these key distinctions will help you in deciding which dictionary it is that you may need and can get the most use out of.
Looking for apps to learn Japanese? Check out these 30 apps for Japanese learning!
Best Japanese Paper Dictionaries
Traditional paper dictionaries have been used by people for many years. Because they are printed, they are a reliable source of the most accurate and detailed explanations for words and sentences. Here are our recommended paper dictionaries for Japanese learners.
1. Kodansha’s Communicative English-Japanese Dictionary
Widely referenced as the most comprehensive English-Japanese dictionary available. It has an all-inclusive word bank of 22,000 words with the support of 190,000 sample questions. It includes Japanese translations for common words, technical terms, and even slang. Additionally, phrasal verbs, specific expressions, idioms, and related grammar points are also included. Most importantly, there is furigana to ensure users the ease of reading.
In conclusion, this is a well-rounded paper dictionary suitable for all levels of Japanese learners.
Buy Kodansha’s Communicative English-Japanese Dictionary on Amazon.
2.Oxford Beginner’s Japanese Dictionary (Multilingual Edition)
This highly rated dictionary was designed to help English-speaking learners have a comprehensive and straightforward introduction to Japanese. It covers vocabulary needed within the first year of study, has notes on grammar, and overall helps guide readers on the culture of Japan. They provide clear examples to show how the language will be used in varying contexts, and is overall well-organized. One of its key features, too, is that the dictionary is split into two sections: The first, where words are organized alphabetically in Japanese, then the second part is organized alphabetically in English.
Buy Oxford’s Beginner Japanese Dictionary on Amazon.
3. Kodansha’s Furigana Dictionary
If you are an absolute beginner in Japanese and would like a dictionary that matches your beginner level. We recommend you use this. It is a basic English-Japanese and Japanese-English dictionary with 30,000 applicable basic Japanese words.
As its name suggests, there is always furigana on top of every kanji in the dictionary to assist the user as they read.
Despite having a smaller word bank, the explanations for each term are precise and comprehensive. For example, words are explained with thousands of examples of sentences. Differences in the usage of similar words are clarified in the dictionary. In conclusion, this is the first Japanese dictionary for beginners.
Buy Kodansha’s Furigana Dictionary on Amazon.
Electronic Japanese Dictionaries
If you feel that it is too troublesome flipping through thousands of pages on a paper dictionary, you may consider getting an electronic one.
Electronic Japanese dictionaries are portable, fast and with useful features such as kanji writing recognition and integrated audio. Some may also have multiple dictionaries stored. This allows you to avoid the trouble of carrying a heavy book around.
Electronic dictionaries have one big weakness – most Japanese electronic dictionaries are built for Japanese English learners. Therefore, the user interface is in Japanese most of the time. If you are a beginner in Japanese, we do not recommend you to get one.
The price of an electronic dictionary depends on its features and the number of dictionaries stored. While older models with basic functions cost less than 40 US dollars, some newer models have more features and bigger word banks are priced up to $500.
Because of the convenient translation websites and apps today, it is almost pointless to spend money on simple electronic dictionaries. As such, we advise you to purchase a newer model with better features. Specific models we recommend is Casio’s ED 9800 Series. It is the comprehensive English-Japanese dictionary series with the latest features. The latest model has the largest word bank supported by 20 English-Japanese dictionaries and 11 Japanese-Japanese dictionaries. Some online dictionaries have audiobooks attached to them, so users are able to double-check what they are saying sounds the same (or similar) to native speakers.
Best Online Japanese Dictionaries and Apps
If you are looking for an easy solution that is also free, we recommend you use an online dictionary and ap dictionary. Online dictionaries and apps only require your phone or laptop and an internet connection (some are even available totally offline). They are extremely convenient, easily accessible, and suitable for most people.
Here are our recommended online dictionaries and apps.
1. Weblio
Weblio is the largest Japanese dictionary website with about 11,370,000 words recorded. You can simply search for the English explanation of a Japanese word or vice versa. Detailed explanations from different dictionaries will be listed with example sentences, phrases, and related words. However, because of the Japanese UI, this website is only recommended to upper beginners and above.
2. Jisho.org
This is a powerful English Japanese online dictionary with a simple user interface and easy-to-use functions. Advanced search options allow you to search for Japanese translations, Kanji, example sentences, and names.
You can also look for words by their radicals, drawings, and even voice input in both Japanese and English. And what is really great for Japanese learners is that you can identify words based on their JLPT level. Kanji from the words will also be listed on the right with their pronunciations and meanings. This online dictionary is extremely suitable for self-learners.
3. Japanese Dictionary Takoboto (Android)
Rated the highest on Google Play, this is one of the best free offline Japanese dictionaries for Android. You can search for words using romaji, kana, kanji or alphabets. You can also search for the translation of complete sentences – just like jisho.org, you can search for kanji by their radicals. Other useful features, such as flashcards and custom word lists, make it even more convenient for use by learners. If you are using an Android device, we highly recommend this app.
Check out Takaboto on Android.
4. Imiwa? (iOS)
A wordplay on the Japanese phrase, “What’s the meaning?” Imiwa is a popular free offline multilingual Japanese dictionary for iPhone. Like the one introduced above, this app also has a strong search engine that allows you to search by meaning, romaji, kanji or alphabet. Of course, you can also search for a kanji by radicals or by drawing it out. Animated stroke order diagrams, pronunciations, and definitions of the kanji will be shown in many languages.
For revision, you can review the words in your search history and create your vocabulary lists. It is very highly rated and often suggested online.
5. Japanese(iOS/Android)
“Japanese” is a comprehensive offline Japanese dictionary for both Android and iPhone. It compiles every useful feature you can find in other Japanese dictionary apps. There are over 175,000 entries and 58,000 example sentences in this app, covering every Japanese word you would see. Moreover, it is more than just a dictionary. For users sitting for the JLPT or the Kanji Kentei, it has ready-built study lists for each level, getting you prepared for the tests.
6. ALC
ALC is a well-established name in Japan’s language-learning world, known for its dependable and comprehensive resources. Its flagship online dictionary, Eijirou (英辞郎), is especially popular among professionals, including translators, thanks to its extensive database of example sentences, collocations, idiomatic phrases, and technical terms that are often missing from other dictionaries.
It’s particularly strong when you’re dealing with specialized vocabulary or need to understand how a term is used in different contexts.
7. Nihongo
If you’re learning Japanese and use a phone or iPad, Nihongo is one of the best dictionary apps you can get your hands on. Created by developer and Japanese learner Chris Vasselli, the app is designed with learners in mind.
What makes Nihongo stand out is its seamless mix of dictionary and study tools. It automatically creates flashcards from words you look up, lets you add photos to help with memory, and shows whether a word is common, uncommon, or rare.
There are also some clever features that make learning smoother. The app includes a Safari extension that adds furigana to kanji on websites, a handwriting tool for when you don’t know a kanji’s reading, and a “Clippings” feature that lets you save real Japanese text and study it later. You can even trace words you’ve saved back to the original content they came from.
8. Kotobank
Kotobank is a Japanese-language online encyclopedia that lets you search across a wide range of dictionaries, encyclopedias, and databases.
It’s a go-to tool when you want quick, reliable definitions or need to better understand the deeper meaning of a Japanese term. The definitions often provide more nuance and cultural context than you’d get from a simple translation.
9. Linguee
Linguee is a free online dictionary that supports multiple language pairs, including Japanese, German, Spanish, and more, translated from English. It’s easy to use and doesn’t require an account or login, which makes it a convenient tool for quick lookups.
What really sets Linguee apart is its vast number of example sentences. In addition to basic, tool-generated examples, it pulls real-world sentences from external sources like multilingual websites. These examples provide richer context and help you see how a word or phrase is actually used in natural writing. While not every translation is perfect—since most aren’t manually reviewed—it’s still an excellent resource for learners.
10. Tagaini Jisho
Tagaini Jisho is a free Japanese-English dictionary app available for both Mac and Windows. While its interface may look a bit old, it’s packed with features that are especially useful for serious learners. You can filter vocabulary by JLPT level, parts of speech, or kanji elements, making it great for targeted study. It even includes kanji stroke order animations to help with writing practice.
Other standout features include the ability to add custom tags and notes to entries, create flashcards, and even print out study booklets using foldable templates. These print-friendly sheets are perfect if you prefer offline learning or want something to carry around in your pocket.
11. Shirabe Jisho (iOS)
“Shirabe Jisho” is owned by the same users who made Jisho.org, so now having a mobile interface that can be used in both Japanese-English or English-Japanese makes it all the better in our books. Its reliability stands out for users as well, with it having 4.9 stars out of 5 with over 7,500 ratings.
Ready to Learn Japanese? Join Coto Academy!
There are many ways to go about learning Japanese, let alone many options for dictionaries. Take time for yourself and think about what will work best for you and your learning needs before you purchase your next dictionary. What are some features that you think will help you better comprehend Japanese? You could maybe trial a few to see what works best for you before totally submitting to one!
If you’re looking for in-person practice or one-on-one help from a native speaker, Coto Academy may be what you need! With in-person classes or private online courses, Coto has a variety of options based on your needs to help you learn Japanese culture and language with ease!
If you are interested in studying Japanese in Tokyo, find out more about our school by filling out the form below. Courses can be found here.
FAQ
How do I translate Japanese words into English?
While it may vary dictionary-to-dictionary, most Japanese to English dictionaries have it so you can type or paste in the search box to be provided an instant search result. When it comes to physical dictionaries though, you can look it up alphabetically with the Japanese word.
How do I search for Japanese words and kanji?
There are many ways of doing this, especially depending on if it’s a physical or e-book. Sometimes you can look it up using a search box, by category, stroke count, or by radicals.
Should you take the JLPT N5 exam?
Through studying Japanese, taking the JLPT N5 exam may be a great way to stay motivated and see your hard work get good use. It is a good learning experience regardless of the score received, and helps to build structure in your learning goals and skills.
What is the Japanese word for dictionary?
The Japanese word for dictionary is 辞書（じしょ / jisho).
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