Built for every learner. AI-native from day one.

Own the words you meet.

Vocabul turns any word you encounter — in a book, a meeting, a song — into a rich, memorable card. Tap once. AI does the dictionary work. You keep the vocabulary.

A vocabulary tool, redrawn around AI.

Not a deck. Not a curriculum. Your library — built from the words you actually meet, with AI doing the dictionary work in the background.

Novel

in the ephemeral glow of evening

Capture once. Own forever.

Your library is yours. No publisher curriculum, no community deck — just the words you chose to keep, in a vault you control.

ephemeral,adj.lasting for a very short time.

More than a dictionary entry.

Every Card carries a definition, CEFR level, part of speech, collocations, examples and IPA pronunciation — written for the way you read.

petrichor
/ˈpet.rɪ.kɔːr/
C2
noun
the petrichor of summera faint petrichor

Built around AI from day one.

Cards stream in field by field as you watch. Inflections collapse to the right lemma. Duplicates surface before you save them.

generating…
🌧️
petrichornoun

the earthy smell after rain.

A picture for every word.

Every Card comes with an illustration generated to match its meaning. Abstract words get something concrete to picture — and remember.

AI-native, where it counts.

Four moments where AI does the heavy lifting — so the time you spend in Vocabul goes into learning, not card-making.

Your vocabulary, compounding.

The longer you use Vocabul, the more your library becomes yours. We don't ship pre-made word lists. We sharpen the one only you could build.

Week 120Your first Cards. Each one a full definition — the dictionary work already done.

Start. The first 20 Cards.

Capture the words you meet today. Tap once and a complete Card streams back — definition, level, examples, pronunciation. No deck to manage.

Month 3500+Vocabul knows your level, your topics, your inflection patterns. Duplicates caught automatically.

Sharpen. The library knows you.

By the third month your library has weight. Inflections collapse to the right lemma. Near-synonyms surface before you save a duplicate. Search finds the word you half-remember.

Year 1Yours.A vault of words you met, you chose, you learned. Searchable, exportable, yours.

Keep. A vault that is yours.

After a year, the library is a fingerprint — only you could have built it. Searchable, exportable, portable. Not rented from a publisher.

Questions, answered honestly.

What we hear most. If your question is not here, we'd rather you ask than guess.

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The next word you read could be the one you keep.

Download on the App StoreFree to start. No streaks, no curriculum — just your words, well learned.