Eight-category dictionary
Browse 308 Japanese words organized into eight categories, including Internet, Otaku, Everyday, Anime-ish, Reactions, Cute, Slang, and Untranslatable.
YABAI
YABAI is a 308-word Japanese slang and culture dictionary that explains meanings, social tone, example usage, and word histories across eight categories. It helps Japanese learners and readers understand how expressions sound and when they fit, with a paid Android app offering 13 languages and device read-aloud support.
Japanese slang explained with context
YABAI is a Japanese slang dictionary focused on meaning, tone, and cultural context rather than direct translation alone. It covers 308 slang, Internet, fandom, everyday, reaction, cute, anime-related, and difficult-to-translate expressions, organized into eight categories for browsing.
The website lets readers open individual word cards or browse the complete A–Z list. Each entry combines an English explanation with a Japanese example and translation, guidance on who can use the expression, a culture note, and a short story about its origin or current usage. The associated Android app is described as a paid, ad-free, no-sign-up, no-subscription product available in 13 languages.
Features
Meaning and usage explanation
Each entry gives a concise meaning followed by a fuller explanation in plain English.
Example sentences
Read an original Japanese sentence with an English translation to see how the expression works in context.
Vibe and tone guidance
Entries indicate who the word can be used with and how it may land, with labels such as Friends only, Safe to use, or Be careful plus tone hints.
Culture notes and word stories
Learn cultural context and a short account of where the expression came from and how it is used now; disputed origins are identified rather than presented as certain.
Multilingual app reading
The app offers the dictionary in 13 languages, supports device read-aloud for every word, and keeps collected content on the phone according to the site.
Use cases
Understanding slang in conversation
Look up expressions such as yabai, oshi, kusa, or emoi and learn the difference between their literal sense and the way people use them conversationally.
Checking social register
Use the vibe labels, tone hints, and example sentences to judge whether an expression fits a message to a friend, a stranger, or a workplace context.
Reading fandom and online Japanese
Browse the Otaku, Anime-ish, and Internet categories to follow fandom posts, online discussions, and Japanese media without relying on literal translations alone.
Learning cultural context
Explore Untranslatable and Everyday entries to study cultural concepts and expressions whose meaning depends on shared social context.
Casual mobile reference
Keep the dictionary on an Android phone for short, low-pressure reference sessions; the site describes the app as a culture snack without streaks, tests, or levels.
Pros and Cons
Pros
- Covers 308 expressions across eight clearly labeled categories.
- Explains register and social fit, including when a word may be too casual for work or strangers.
- Pairs entries with original example sentences, translations, cultural notes, and usage histories.
- Provides multilingual reading and device read-aloud support in the app.
- The site states that the app has no ads, no sign-up, and no subscription.
Cons
- The site does not publish an exact app price or package limits.
- The available evidence describes an Android app, so support for other platforms is not established.
FAQ
What is YABAI?
YABAI is a Japanese slang dictionary containing 308 words across eight categories: Anime-ish, Cute, Everyday, Internet, Otaku, Reactions, Slang, and Untranslatable.
What information does each word entry include?
Each word includes a plain-English meaning, an original Japanese example sentence with translation, guidance on how the word sounds and who it is appropriate to say it to, a culture note, and a short origin or usage story.
Where can I use YABAI?
The dictionary is available to read on the YABAI website, and the product describes a paid Android app. The site does not provide an exact price or package limits.
Does YABAI include translations or read-aloud support?
The app states that its dictionary is available in 13 languages and that words can be read aloud by the device. It also says there are no ads, no sign-up, and no subscription.
Who is YABAI useful for?
YABAI is designed for learners and readers who want context around Japanese slang, including how expressions sound, where they are used, and whether they are suitable with friends, strangers, or at work.
Quick Facts
- Product type
- Japanese slang and culture dictionary
- Word count
- 308 words
- Categories
- 8
- App platform
- Android app described on the site
- Languages
- 13 languages in the app
- Access model
- Paid app; exact price not published on the site
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