A vocabulary you can put to work.

A practical way to use each lesson

1. Read the first section. Predict the meaning of the highlighted words from the situation. Open a definition if you need help.
2. Take the short quiz. Try to answer before revisiting the passage. Read the feedback even when your answer is correct.
3. Continue to the next reading. A typical lesson contains six focus words, four original paragraphs, and two three-question quizzes. Shorter lessons show their own question counts.
4. Apply the meaning somewhere new. Try a fresh-context checkpoint. Explain why the word fits that situation and why a tempting alternative does not.
5. Return on another day. Use recall cards and scored questions. Add a sentence of your own to a dictionary entry, then compare its sense with the definition.

Lesson levels are editorial groupings for this collection, not validated reading levels or a standardized college examination syllabus. Lesson situations and newly authored examples are fictional teaching material. Selected examples from the original notes are labeled separately.

Why reading, retrieval, and review?

In experiments using prose passages, Roediger and Karpicke found that retrieval practice improved later recall compared with additional study under the conditions tested. Their experiments used free recall, so they do not establish an effect size for WordCraft's multiple-choice quizzes. The app also encourages you to explain meanings before revealing answers and to write your own sentences. Read the original study record.

Cepeda and colleagues found that distributing study across sessions can improve later retention, with the useful spacing depending on when material must be remembered. The builder applies this general principle by returning words on later days. Its specific review intervals are an application practice rule; this app has not been evaluated in a learning trial. Read the research review.

How review scheduling works

A first successful quiz answer or a remembered recall card schedules that word for tomorrow. Successful practice on later calendar days advances the interval to 3, 7, 14, then 30 days. Repeating a correct word on the same day does not advance it through those intervals. A missed quiz answer or a "Needs another look" self-check makes the word due again. You may always practice early.

Why add a different question and a later check?

Karpicke and Roediger's vocabulary experiment found that continued retrieval after an initial correct answer improved delayed recall under the study's conditions. That supports returning to a word after early success, but it does not validate this app's multiple-choice format or establish that a particular score proves mastery. Read the researchers' institutional abstract.

Cepeda and colleagues' 2008 study found that the useful interval between learning sessions depended on how long the information needed to be retained. The builder therefore encourages practice across time, while treating its exact intervals as design choices. Read the journal's abstract.

Each guided word has one checkpoint question authored in a different context from its lesson. The same checkpoint is reused on later visits. Its purpose is to broaden practice and expose uncertain usage; two questions cannot sample every meaning or real-world use of a word.

Exams for word relationships

Five mixed exams each cover 25 distinct words and combine synonyms with antonyms. They report separate subtotals and save attempts in the main course record.

The Synonym Exam contains 300 original five-choice questions in 30 sets. The Antonym Exam contains 200 questions in 20 sets. Each set has ten questions. Choose the closest relationship in the intended sense, then read the explanation and additional examples. A word can have several senses, and related words may differ in tone or degree. These banks sample the collection; every retained word also has a guided reading, lesson question, and checkpoint.

Questions and answer order stay the same on repeat visits. Results from completed sets are saved in this browser, with separate latest-answer and cumulative records. There is no timer or official SAT score. The exams are original practice material inspired by traditional vocabulary questions and are not affiliated with an examination provider.

What a retention milestone requires

A guided word reaches this milestone when the current successful run meets all of these conditions:

1. At least one correct scored answer on each of three distinct local calendar dates.
2. At least seven calendar days between the first and latest correct dates in that run.
3. Correct answers to at least two different authored questions, including a checkpoint answered correctly at least seven calendar days after the run's first correct answer.
4. The latest scored answer is correct.

A wrong scored answer or a "Needs another look" recall self-check restarts the run. Earlier attempts remain in the history and accuracy totals. A remembered self-check helps schedule the next review but does not count as scored evidence. Same-day retries cannot supply additional study dates.

Eligible earlier quiz and checkpoint history is reused. Synonym and antonym exam answers count as scored evidence: they can contribute correct dates and different question identities, and wrong answers restart the run. A delayed checkpoint is still mandatory. The milestone is calculated from the history still stored in this browser. It is an application practice rule, not a validated proficiency threshold, certification, or guarantee of mastery. This builder has not been evaluated in a learning trial.

What the progress numbers mean

Lessons completed

Both quizzes in the lesson have been submitted with all answers present. A lesson counts once, regardless of retries or scores.

Words practiced

Distinct words encountered in a completed scored quiz or a recall-card self-check. Simply opening a definition does not add a practiced word.

Scored practice accuracy

Correct answers divided by answered questions across completed lesson, practice, checkpoint, synonym, antonym, and mixed exam attempts. Self-rated recall cards are excluded.

Checkpoint accuracy

Correct checkpoint answers divided by all answered checkpoint questions, including repeats. This is also included in overall scored accuracy.

Exam progress

Synonym, antonym, and mixed exams each have their own totals in the course record. Questions tried counts distinct submitted questions; latest answers correct counts those whose most recent answer was correct. Cumulative exam accuracy includes every submitted answer, including retries. Completing a set means answering all of its questions, regardless of score.

Retention milestones

Guided words whose current scored practice history meets every rule above. This is separate from lesson completion and practice coverage.

Active study days

Distinct local calendar days with at least one completed scored quiz or recall-card self-check.

Ready for review

Saved or practiced words whose next suggested review date has arrived. This is a scheduling aid, not a measurement of mastery.

Guided content coverage

The share of the audited dictionary with an authored reading, lesson question, and checkpoint. This describes the app's material, not an individual learner's achievement.

Quiz results are graded on the server and returned immediately. The app does not maintain a server-side learner profile. Learning history, saved words, and personal sentences are stored in this browser only.

Dictionary scope and editorial sources

The starting collection is GlobalRPh's supplied Vocabulary.html, headed "Updated May 25 2021," containing lettered passages A-E and numbered study sections 1-22. The collection has expanded with the October 5, 2026 supplied list. It now stores 2032 word records, arranged under 1944 featured headwords. Closely related forms have individual meanings inside their word family, rather than repeated browse cards. Duplicate appearances are consolidated, and familiar inflections are linked to a base headword where appropriate.

Definitions are concise editorial study meanings. Earlier entries are informed by the supplied glosses; the October additions draw on WordNet and record-specific checks. The v3.0 additions have original definitions, examples, and usage contexts. Where an external reference was consulted, its link appears with the entry. Examples combine original practice writing with selected passages from the supplied study notes. Source captions identify adapted notes and guided readings. This is a learning dictionary rather than an exhaustive account of every possible English sense. The guided lessons teach 2032 focus words. Every dictionary entry can also be explored through additional examples and recall cards.

Some historical study notes use very loose synonyms. The displayed meanings distinguish common sources of confusion, such as fortuitous and fortunate, or imply and infer. Source section references appear within each dictionary entry. Original clinical statements in the historical notes are not used as treatment guidance.

Dictionary entries have not all been independently checked against an external dictionary. Source-based editorial definitions and any specifically documented external checks are kept distinct.

Why some forms share one entry

Related forms such as impartial and impartiality, or myopia and myopic, share a featured browse entry. Their grammar, definitions and earlier learning history remain distinct. Words are not merged merely because they look similar or have overlapping synonyms. All supplied October forms can be found in the supplied-list index.

The original course remains intact. New Vocabulary Studio lessons present short independent example scenes, not continuous stories. The comprehensive exam uses one question per featured headword; earlier grouped-form responses remain in backups, without granting credit for a different headword.

A second reference for synonyms

The Synonym Dictionary keeps every original headword and groups alternatives by meaning. Closest synonyms are separated from broader related words and explanatory expressions. Usage notes describe differences in tone, strength, grammar, or context. A technical phrase may have helpful explanatory expressions without a close single-word substitute.

The lexical work uses the retained study definitions and contexts, Princeton University's WordNet 3.0 lexical database, and record-specific dictionary checks where documented. Selection and usage notes are editorial; not every expression is present in WordNet, and listing a source does not mean that every word has received an independent publisher review. Each synonym entry includes its available references.

WordNet 3.0 is used under its included license. See the Princeton WordNet project for database background. The original Definition Dictionary, its examples, and its source identity remain available alongside this reference.

Choose the practice that fits your next step

Guided readings cover 2032 of the 2032 dictionary entries (100.0%). Each dictionary entry links to its guided reading. Use the Practice filter to find words with original-note examples or questions in either exam. Every dictionary entry also supports recall in both directions: word to meaning and meaning to word.

A meaning can fit more than one related word. Reverse recall asks you to compare your answer with the target entry; it is a self-check, not an automatically graded spelling test. Mark an uncertain answer for another look and try an original sentence to check the sense.

Browser storage and your choices

Progress remains on this site's origin in the current browser profile. Another browser, device, domain, or HTTP/HTTPS address has a separate record. Private browsing and clearing site data can remove it. You can download an optional backup and restore it yourself on the progress page; no automatic sync or account is involved.

If storage is blocked, full, or damaged, The builder will tell you rather than claim your work was saved. Reading, dictionary search, and PHP quiz results remain available. Browser-stored learning data is not isolated from other scripts running on the same site, including the site's advertising integration. Browser storage reference.

References

1. GlobalRPh. (2021, May 25 heading). Vocabulary.html. User-supplied study collection. Source received October 3, 2026.
2. GlobalRPh. (2026, October 5). Supplied vocabulary expansion and cleanup list. Word inclusion and form reconciliation basis. New study definitions and fictional examples are editorial, not quotations from this list.
3. Roediger, H. L., III, & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249-255. https://doi.org/10.1111/j.1467-9280.2006.01693.x. PubMed abstract reviewed for version 1.1 on October 3, 2026.
4. Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T., & Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354-380. https://doi.org/10.1037/0033-2909.132.3.354. PubMed abstract reviewed for version 1.1 on October 3, 2026.
5. Karpicke, J. D., & Roediger, H. L., III. (2008). The critical importance of retrieval for learning. Science, 319(5865), 966-968. https://doi.org/10.1126/science.1152408. WashU institutional abstract reviewed October 3, 2026.
6. Cepeda, N. J., Vul, E., Rohrer, D., Wixted, J. T., & Pashler, H. (2008). Spacing effects in learning: A temporal ridgeline of optimal retention. Psychological Science, 19(11), 1095-1102. https://doi.org/10.1111/j.1467-9280.2008.02209.x. APS journal abstract reviewed October 3, 2026.
7. MDN Web Docs. (2026, July 28). Window: localStorage property. https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage. Reviewed for version 1.1 on October 3, 2026.

Book and dictionary imagery reused from GlobalRPh. Version 3.7.