What is the Core 10K?
The Japanese Core 10K is a curated list of the 10,000 most frequent words in the Japanese language, based on analysis of newspapers, literature, and media. It's a popular resource for Japanese immersion learners and those practicing sentence mining.
This tool is a lightweight Japanese vocabulary generator that randomly samples from the Core 10K. It provides quick vocabulary exposure without the overhead of managing Anki decks or SRS schedules—useful for supplementing your existing study routine.
Native Audio & Context
Context matters for Japanese language acquisition. Every word includes a sample sentence with English translation, helping you understand how vocabulary is actually used.
The YouGlish integration lets you hear native speakers using these words in real YouTube videos. This bridges the gap between textbook study and real-world listening comprehension—helpful for learners at any level.
Simple mode samples uniformly from words 1-300 (most common). Standard mode uses weighted sampling from words 301-10,000, favoring more frequent words. Data sourced from the Core 10K Anki deck.