Vocab

Words come back right before you'd forget them.

Cramming word lists doesn't fail because you're bad at words.

It fails because nothing brings the word back at the right moment.

So that's the entire design.

The vocab deck shelf: the 3,433-word SAT Vocabulary book beside a personal wordbook
The SAT deck, plus wordbooks you build yourself.

The life of one word.

Every word sits in one of five boxes.

Get it right, it climbs a box and waits longer to return.

Get it wrong, it drops back and comes at you sooner.

The clock isn't a calendar — it's your own answers.

Three study modes: Basic showing the five-box ladder, AI Duel with matched cards, and Adventure's explorable map
Three ways to train — Basic, AI Duel, Adventure — all feeding the same five boxes.

Miss it twice, and the deck stops.

Two misses means this word owns you. So Eden steps in, live.

It reacts to the exact wrong meaning you picked.

And the lesson only closes when you can recall the word cold.

Words you save out of real questions in Study Hall get the same treatment.

An Eden vocab lesson on the word candid: a sentence in context and three candidate meanings to choose from

Don't take our word for it.

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