Home / HSK Vocabulary / HSK 1 / 四 四 sì HSK 1 · A1 Meanings four 4 Quick facts Strokes5 HSK LevelHSK 1 CEFRA1 ← Back to HSK 1 word list Practice 四 with flashcards MandoBridge uses spaced repetition to help you remember HSK 1 vocabulary — free on iOS and Android.