Learning 1,000 words in a new language is the difference between total confusion and functional comprehension. Research suggests that the 1,000 most common words in any language cover roughly 85% of everyday speech. Once you have them, you can have real conversations and start learning from immersion.
Here's a concrete plan to get there in 90 days using spaced repetition — with 15 minutes of daily review.
The Math: Why 15 Minutes Works
1,000 words over 90 days = 11–12 new words per day. Each new word takes about 30–60 seconds to learn initially. Reviews of previously learned words take 5–10 seconds each (you already know them).
In a well-run spaced repetition system:
- Days 1–10: 5–8 minutes (small number of cards, mostly new)
- Days 11–30: 12–18 minutes (reviews accumulate)
- Days 31–90: levels off at 12–15 minutes (reviews and new cards balance out)
The key is consistency. Skipping a day doesn't double your next session — it triples it, because reviews pile up. 15 minutes every day beats 3 hours once a week.
Step 1: Choose the Right Word List
Not all 1,000-word lists are equal. Use a frequency list — words ordered by how often they appear in actual usage, not alphabetically or thematically.
Good sources:
- Spanish: Frequency dictionaries by Routledge (available as pre-made Anki/Flevro decks)
- French: The Lexique database provides raw frequency data
- Japanese: Core 1000/Core 2000 decks cover the most frequent words
- German: Frequency-based Anki decks from the community
- General: Wiktionary frequency lists are free and comprehensive
Avoid topic-based word lists as your primary resource (e.g., "100 words about food"). They're useful supplements but don't give you the highest return on study time.
Step 2: Structure Your Flashcards Correctly
The format of your flashcard matters as much as the content. Here's what works:
Front of card
The target word in the language you're learning, plus audio pronunciation. No definition yet — you want to test retrieval, not recognition.
Back of card
- Translation in your native language
- One example sentence (short, natural)
- If available: an image that represents the word (helps visual memory)
Keep it simple. Cards that are too complex take longer to review and are harder to memorize as a unit.
One card per word, not both directions
For a vocabulary-building goal, test recognition (target language → native language). Production (native → target) is harder and takes longer; add it later once you've built a base.
Step 3: Set Up Your Daily Rhythm
The single most important variable is doing your reviews at the same time every day. Your SRS builds a schedule around you; skipping breaks that schedule.
Recommended schedule:
- Morning: Do your reviews first (before checking email or social media)
- 15 minutes maximum: If your reviews take longer, you're adding cards too fast. Reduce new cards per day
- 12 new cards per day: Adjust based on your first 2 weeks of data
Step 4: Use the FSRS Algorithm
The algorithm your SRS uses matters. Most apps (and older Anki versions) use SM-2, which schedules cards based on a simple ease factor. FSRS-5 is significantly more accurate — it models memory using three dimensions and has been trained on hundreds of millions of real reviews.
In practice, FSRS means fewer reviews for the same retention. Over 90 days, that's hours of study time saved.
The 90-Day Breakdown
| Phase | Days | New words/day | Focus |
|---|---|---|---|
| Foundation | 1–30 | 12 | Build habit, learn common words 1–360 |
| Acceleration | 31–60 | 12 | Words 361–720, more review sessions |
| Consolidation | 61–90 | 10 | Words 721–1000, focus on weak cards |
What to Expect at Each Milestone
- Day 30 (360 words): You'll start recognizing words in native content. Songs, menus, subtitles will feel less opaque.
- Day 60 (720 words): Simple sentences make sense. You can follow the gist of slow conversations.
- Day 90 (1,000 words): You understand ~85% of casual spoken language. Immersion becomes genuinely educational rather than overwhelming.
The Biggest Mistakes to Avoid
- Adding too many cards at once: Review debt accumulates quickly and becomes demoralizing. Stick to 10–15 new cards per day.
- Marking cards "Easy" too quickly: Be honest with yourself. If there was any hesitation, mark it "Good," not "Easy."
- Quitting after a missed day: Resume the next day. The schedule adjusts. Missing one day costs you 2–3 minutes of extra reviews, not 90 days of progress.
- Using only flashcards: SRS is a complement to immersion, not a replacement. Watch content, listen to podcasts, and try to read native text alongside your reviews.
Start Today
The best time to start is now. Every day you delay is a day of review data you don't have.
Create a free Flevro account and import or build your 1,000-word deck today. Free tier includes unlimited cards across up to 3 decks — enough to start your first 40 days.