卡 Strokes Write it Listen 卡 kǎ to stop; to block; (computing) (coll.) slow HSK 2 5 strokes Radical 卜 Ideograph 10 words Built from上shàngabove, on top, superior; to go up; to attend; previous卜bodivination, fortune-telling; prophecy How it worksA card squeezed between 上 and 下.