How to Build Vocabulary Fast: Spaced Repetition Explained

The Vocabulary Problem

You learn a new word. You feel confident. The next day? Gone. This is the forgetting curve—and it's the biggest obstacle to building vocabulary.

But there's a solution: spaced repetition. It's backed by science and used by polyglots worldwide.

What Is Spaced Repetition?

Spaced repetition is reviewing information at increasing intervals. Instead of cramming, you revisit words just as you're about to forget them.

Think of it like watering a plant—right when it needs it, not too much, not too little.

The Science Behind It

Your brain forms memories through synaptic connections. Each time you recall something, the connection strengthens. Spaced repetition optimizes this process:

First review: 1 day later
Second review: 3 days later
Third review: 7 days later
Fourth review: 14 days later
Fifth review: 30 days later

Each review extends the memory's lifespan until it becomes long-term knowledge.

How to Use Spaced Repetition

1. Use Spaced Repetition Apps

Anki, Quizlet, and Lurnit use algorithms to schedule reviews. Install one and start building your deck.

2. Create Meaningful Connections

Don't memorize in isolation. Connect new words to existing knowledge, images, or emotions.

3. Use It or Lose It

New words need to appear in real sentences. Learn phrases, not just definitions.

4. Review Before Bed

Sleep consolidates memories. A quick review before sleeping improves retention significantly.

Spaced Repetition Schedule

Review	Timing	Retention
1	1 day	Short-term
2	3 days	Building
3	7 days	Medium-term
4	14 days	Strong
5	30 days	Long-term

Building Your Vocabulary Deck

Start with High-Frequency Words

Don't learn random words. Focus on the top 1,000 most common words—they cover 80% of everyday conversations.

Add Your Own Sentences

Create sentences you'll actually use. Personal context improves memory.

Include Audio

Hearing words reinforces learning. Add pronunciation to your flashcards.

Conclusion

Spaced repetition isn't a hack—it's how memory actually works. Use it consistently, and you'll remember vocabulary that used to vanish overnight.

Ready to start? Use AI-powered vocabulary practice with built-in spaced repetition to maximize your retention.