For YouTube

Never lose the moment a word came from

Drag to select a word or phrase in the subtitles while a video plays — get its meaning instantly, and jump back to the exact second it was said, any time later.

How it works

The word and the moment, saved together

Select text in the caption panel the same way you'd select text in a document. A card opens with the meaning and a real pronunciation, and the saved entry links straight back to that timestamp in the video — so "where did I hear that?" always has an answer.

Browser extension
YouTube

No puedo creer que perdamos la casa así.

perdamos
Verb
we lose
to miss (a bus, a flight, a chance)
perder el autobús
Collocations
  • perder el tiempo
  • perder la paciencia
  • perder de vista
Add to draft
Practice

Mark it, and it plans the next review itself

After each card, just say whether you knew it. Dictarium uses that to steer review time toward the words you’re actually shaky on, not the ones you’ve already got. Want more nuance? A 4-point scale — Again, Hard, Good, Easy — is one toggle away in settings.

confiar
to trust — “confiar en alguien”
confiar
to trust — “confiar en alguien”
or keep it simple
Pronunciation

Hear it the way it’s actually said

A word doesn’t sound the same everywhere — Dictarium gives you real voices to choose from instead of one flat default: American or British English, Latin American Spanish, Brazilian Portuguese, and more. Pick the one you want once, and every card plays it back that way from then on.

schedule
English

Not a subtitle downloader

Plenty of tools let you read a video's transcript after the fact. Dictarium works while you watch, live, on the actual video — and the words you save stay attached to the videos and channels you're actually learning from, not a pile of loose flashcards.

More ways to use Dictarium

Everything Dictarium doesThe full picture: video, audio, web, Anki, AI.Learn from NetflixClick a subtitle, get the word — no dual subtitles needed.An Anki alternativeBring your old decks in, stop making cards by hand.Save words while readingAny article, any page — select a word, done.Vocabulary for workFrom real calls and documents, not flashcard drills.An alternative to other apps(Duolingo)A streak that only counts if you actually learned something.Real, printed flashcardsPDF or DOCX, laid out so double-sided printing actually lines up.Read e-booksGet definitions inside any EPUB or PDF, not just on the web.Get the desktop appFree reader for Windows, macOS, and Linux.

Start your first dictionary — it takes a couple of minutes

Add five words from whatever you’re watching or reading right now, and try your first review today.

Get started free