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Vocabulary Flashcards (Spaced Repetition)

Review eight source-grounded adjective cards with a disclosed three-box Modified-Leitner schedule saved only in your browser.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Open each due card, say or think of its meaning, then reveal the source-grounded paraphrase.
  2. 2.Choose Again to return the card to box 1 for next-day review, or Got it to move it toward the 2-day and 4-day boxes.
  3. 3.Return on a later day for due cards; progress stays in this browser when storage is available, and Restart resets the local deck.

About Vocabulary Flashcards (Spaced Repetition)

Vocabulary Flashcards is a fixed eight-card English deck with a transparent local review schedule. Each card shows one adjective on the front. Think of the meaning before revealing the back, then choose Again or Got it. The deck contains lucid, prudent, resilient, concise, impartial, fragile, verbose, and biased. Their spellings and displayed ordinary senses are executable reference data, so Princeton WordNet 3.1 is the primary lexical source and a dedicated Cambridge Dictionary entry independently cross-checks every card. The short meanings are product paraphrases of the overlapping senses rather than copied dictionary examples.

The eight meanings are disclosed and tested literally. Lucid means clearly expressed and easy to understand. Prudent means careful and avoiding unnecessary risks. Resilient means able to recover successfully after difficulty. Concise means short and clear without unnecessary words. Impartial means not supporting either side in a dispute. Fragile means easily damaged or broken. Verbose means using more words than necessary. Biased means showing unreasonable preference based on personal opinions. The evidence gate requires exactly eight unique word keys and eight unique displayed meanings. A source-first fixture compares each literal pair with the shipped table.

The page uses a three-box Modified-Leitner schedule. New cards begin in box 1 and are due daily. Marking a card Got it moves it to the next box, up to box 3. Box 2 returns after two days and box 3 after four days. Marking Again returns the card to box 1 and schedules it for the next day. MIT 6.031 documents a Modified-Leitner model with numbered buckets and powers-of-two day intervals. The University of York independently confirms the core direction: correct recall promotes a card to a less frequent box, while incorrect recall returns it to the first box for more frequent review. The page calls its exact schedule Modified-Leitner rather than claiming one universal interval table.

A due date never grades a card or moves it between boxes by itself. Only an explicit Again or Got it choice changes progress. The session takes a single integer UTC day at startup, so crossing a clock boundary during one card cannot produce two different schedules. Tests pin the transitions: a box-1 card recalled on day 10 becomes box 2 due on day 12; recalled again on day 12 it becomes box 3 due on day 16; marked Again on day 16 it returns to box 1 due on day 17. A stale card ID, grading before Reveal, repeated grade, malformed rating, or backward day is rejected.

Progress is saved under one versioned key in local browser storage. The stored payload contains only the eight card IDs, box numbers, and next-due integer days. It contains no account, name, email, free-text answer, language profile, score history, or device identifier. Storage reads and writes are wrapped because a privacy setting, policy, quota, or browser mode can deny access. If that happens, the page continues with an in-memory deck for the current tab and says so. Invalid JSON, a wrong schema version, missing cards, duplicate IDs, invalid boxes, or invalid days is discarded in favour of a clean local deck.

Use Space or Enter to reveal a meaning. After reveal, A marks Again and G marks Got it. Buttons provide the same path for touch and pointer input. One due card can be graded once. When every currently due card has been handled, the summary shows cards reviewed, Got it choices, Again choices, and points. Each Got it is worth 100 recreational points; no proficiency level, vocabulary size, grade, CEFR band, percentile, or educational placement is inferred. Restart intentionally resets all eight local cards to box 1 so the schedule can be replayed from a known state.

This is an entertainment exercise, not a clinical/IQ/cognitive assessment. It does not diagnose memory, measure intelligence or language proficiency, or show whether your brain has improved. A small fixed deck cannot evaluate school readiness, employment fitness, fluency, a learning condition, treatment progress, or support needs. Use it as a private recall game with auditable words and scheduling rules, not as an assessment. For formal language guidance or accessibility support, use an appropriate qualified educational service.

Methodology & sources

Bundle exactly eight unique WordNet 3.1 adjectives with eight unique Cambridge-cross-checked sense paraphrases. Initialize all cards in box 0, reveal before grading, promote Got it to min(box+1,2), reset Again to box 0, and schedule next due day as reviewDay + 2^box. Persist only a versioned eight-row progress payload in localStorage with strict parsing and in-memory fallback. Literal lexical and day-transition fixtures are independent from the production table and scheduler. No proficiency or cognitive interpretation is produced.

Frequently asked questions

Where do the vocabulary words and meanings come from?
Princeton WordNet 3.1 is the primary lexical source, and a dedicated Cambridge Dictionary page independently cross-checks every spelling and displayed ordinary sense.
What schedule do these flashcards use?
They use a disclosed three-box Modified-Leitner schedule: box 1 is due after 1 day, box 2 after 2 days, and box 3 after 4 days. Again resets a card to box 1.
Does this deck measure vocabulary size or language proficiency?
No. It is an eight-card recreational deck with no CEFR mapping, grade, norm group, placement score, or proficiency interpretation.

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