Decks
Pick a deck and handwrite its words from memory — spaced repetition schedules the rest.
These are vocabulary decks. To drill the kana characters themselves, try the character decks →
Study Japanese Vocabulary with Spaced-Repetition Decks
Decks turn the words you are learning into an active study routine. Group vocabulary into decks, then study each word by handwriting its reading from the meaning alone — recalling and producing the word, not just recognizing it. After each word you rate how well you remembered it, and a spaced-repetition system schedules the next review so you see hard words often and easy words rarely.
How Deck Study Works
Pick a deck to begin a study session. For each word you see its meaning and handwrite the reading on the canvas, kana by kana. Reveal the answer to check yourself, then rate your recall as Hard, Medium, or Easy. Your rating sets when the word comes back: miss it and it returns soon, nail it and the interval stretches out. You can also review a deck with the Match and Crossword exercises for a change of pace.
Why Spaced Repetition Works
Spaced repetition schedules each review for the moment just before you would forget, so every session targets the words on the edge of your memory. Words you find easy drift to long intervals and stop wasting your time, while difficult words come back quickly until they stick. It is one of the most efficient ways to move vocabulary into long-term memory.
Recall by Handwriting
Handwriting each word from its meaning forces active recall — the single most effective study action for long-term retention. Tracing the kana also reinforces stroke order and the shape of each character, so you build reading, writing, and memory at the same time. It is far stronger than passively flipping through cards.
Keep Learning
Fill your decks from the vocabulary library, look up characters in the kanji library, study Japanese grammar, or review the hiragana and katakana chart.
Frequently Asked Questions
What is a vocabulary deck?
A deck is a set of Japanese words you group together to study — for example words from a lesson, a theme, or a textbook chapter. You build decks from the vocabulary library and study them here with spaced repetition.
How does the spaced-repetition schedule work?
After you handwrite a word and reveal the answer, you rate your recall as Hard, Medium, or Easy. That rating sets the next interval: a hard word returns soon, an easy word after a longer gap. Over time each word settles into a rhythm that matches how well you know it.
Why do I handwrite the word instead of just reading it?
Handwriting the reading from the meaning is active recall — you produce the word from memory rather than merely recognizing it. This is much more effective for long-term retention, and tracing the kana reinforces stroke order at the same time.
How many words should I study each day?
Consistency matters more than volume. A short daily session — often twenty to thirty words — keeps your reviews from piling up and steadily grows your vocabulary. Spaced repetition automatically balances new words against words due for review.
Are these the same as character decks?
No. These are vocabulary decks — whole words. To drill the individual hiragana and katakana characters, use the character decks instead. Both use the same handwriting and spaced-repetition engine.