蹭 Strokes Write it Listen 蹭 cèng to rub against; to walk slowly; (coll.) to freeload HSK 7–9 19 strokes Radical 足 Sound + meaning 1 word Built from足meaningzúfoot; to attain, to satisfy; enough曾soundcéngalready, formerly, once; the past How it works足 hints at the meaning (foot), and 曾 céng hints at the sound.