灸 Strokes Write it Listen 灸 jiǔ to cauterize; moxibustion HSK 7–9 7 strokes Radical 火 Sound + meaning 1 word Built from久soundjiǔlong ago; a long time火meaninghuǒfire, flame; to burn; anger, rage How it works火 hints at the meaning (fire), and 久 jiǔ hints at the sound.