A vocabulary builder that works while you read

SentiaRead saves words together with the real sentence you found them in. Every saved word is then automatically highlighted with contextual inline meanings the next time it appears — in any book, article, or podcast transcript in your library — so vocabulary grows through repeated encounters in real context, not flashcard drills. It works on iPhone, iPad, Android, e-ink devices, Mac, and Windows — and your word list syncs across all of them.

Available on iPhone, iPad, Android, Mac, Windows, E-Ink, and Chrome.

Save words without leaving the page

Tap any word while you read. SentiaRead explains it for the sentence you are in, matched to your level — then one tap adds it to your learning list, sentence included. No app-switching, no retyping into a separate deck.

Saved words are highlighted with inline meanings across future reading

Every saved word is automatically highlighted when it appears again — in your next book, tomorrow's article, or a podcast transcript. It can also display a quiet inline meaning matched to the new sentence, so you understand it at a glance without having to look it up a second time.

The words you keep forgetting come back — on screen or in your ears

Words you meant to learn slip away fastest when review reduces them to a bare card. Here each one comes back inside the sentence you met it in, so you are recalling a moment instead of a definition — and the same list is waiting on whichever device you pick up. A commute or a walk stops being dead time too: put headphones on and your saved words are read to you, hands-free, on Word Radio.

Different from flashcard apps

No deck building

Words come from what you actually read, with their sentences already attached.

Context stays attached

You review the sentence a word lived in, not an isolated card with twenty senses.

Review happens as you read

Automatic highlights and inline meanings bring saved words back in every new text you open, reinforcing vocabulary without breaking your pace.

Frequently Asked Questions

You decide how much comes with each word: the English explanation, the meaning in your own language, example sentences, or simply the word repeated a few times. Words you mark as mastered drop out of the next round, so what you listen to keeps narrowing to the ones still escaping you.
iPhone, iPad, Android phones and tablets, Android e-ink devices, Mac, and Windows — plus a Chrome extension for reading web articles.
Explanations adapt to your level, from CEFR A1 to C2. When an explanation is still too hard, one tap shows an explanation in your native language.
Yes. Import EPUB, PDF, web articles, and podcast transcripts — saved words are highlighted across everything in your library.

Works together with

Build vocabulary from real reading

Free to start. Your first book is already on the shelf.