碍 Strokes Write it Listen 碍 ài to block, to deter, to hinder, to obstruct HSK 5 13 strokes Radical 石 Sound + meaning 4 words Built from石meaningshístone, rock, mineral㝵sounddéto obtain, to get, to acquire; ancient form of 得 How it works石 hints at the meaning (stone), and 㝵 dé hints at the sound.