Supports English, Italian, Spanish, French, German, Dutch, and Bulgarian.

Read naturally. Save new words automatically.

Look up unfamiliar words while reading. Every lookup becomes a flashcard automatically — no decks to build.

Try it — look up a word

Free — no signup required. Or import a passage and click the words you don't know, or install the Chrome extension.

Here's what happens after you look up a word:

For example, besotted:

1See definition
2Saved to your words
3Review it later

Cards are scheduled for you — come back when it's time and see if the word stuck.

Looking up a word is easy. Remembering it later is the problem.

Dictionaries explain a word once, then it's gone. Browser translators don't build a vocabulary history. Manual flashcards interrupt your reading. Word Holder keeps the words you naturally encounter so they're still there a week later.

From reading to review, automatically

  1. Read a book, article, or webpage in any of the supported languages.
  2. Look up an unfamiliar word — on the website or with the Chrome extension.
  3. The word is saved automatically with its meaning and an example sentence.
  4. Come back the next day to review only the words you actually met.

Useful for

Any reading where new words show up.

Novels

Catch the literary words that authors use once and never again.

Online articles

Save unfamiliar terms from news, essays, and long-form writing.

Work & study reading

Build a vocabulary from the texts you already read for school or work.

Academic & professional

Capture the precise vocabulary your field needs — without curating decks.

Not another flashcard deck

  • Every lookup becomes a flashcard automatically — no decks to build.
  • Vocabulary comes from real reading, not generic word lists.
  • You only review words you actually needed in context.
  • Designed for people who already read in a language you read, not beginners.

Start reading. Save the words you look up.