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About this tool
Build your English vocabulary with 120 curated words across Easy, Medium, and Hard levels. Learn with flip cards and test yourself with multiple-choice quizzes.
The Vocabulary Builder is a flashcard and quiz trainer built on a fixed set of 90 English words — 30 Easy, 30 Medium and 30 Hard — each stored with its definition, part of speech, an example sentence and synonyms. It is aimed at students preparing for exams, ESL learners and anyone rebuilding reading vocabulary, and it gives you three ways to work: a Word of the Day, tap-to-flip flashcards, and a multiple-choice quiz that shows a definition and asks you to pick the matching word from four options.
Open Vocabulary Builder on AltFTool — it loads instantly in your browser.
Pick Easy, Medium or Hard (30 words each) with the level filter, or stay on All Levels.
Tap a flashcard — or use the Flip and Random buttons — to reveal the definition, part of speech, example sentence and synonyms, then press Start Quiz.
Each quiz question shows a definition with four word choices, and the running Score: correct/total sits in the quiz header.
The same 90 words are split 30/30/30 across Easy, Medium and Hard, so you can drill only the band that is actually hard for you.
Each question shows a definition and offers four word choices drawn from the wider word list, so guessing by elimination does not work as easily.
Flipping a card reveals the definition, part of speech, an example sentence and synonym chips together, which is how words actually stick.
There are 90 words in total, split evenly into 30 Easy, 30 Medium and 30 Hard. The difficulty filter shows the live count for each level, and the flashcard deck and quiz both draw from whichever level you have selected.
It is picked by day of the year modulo 90, so the word is the same for everyone on a given date and changes once per day. Because 90 does not divide 365 evenly, the cycle shifts across the year rather than repeating on the same dates.
The quiz shows you a definition and four candidate words, one of which is correct. Wrong options are pulled at random from the full 90-word list, the correct answer is revealed as soon as you choose, and a running correct-out-of-attempted score sits in the quiz header.
No — the quiz score and the flashcard position reset when you reload the page, and nothing is uploaded or stored on a server. Everything runs locally in the browser, so treat each session as a fresh drill rather than a long-term progress tracker.