蹑 ㄋㄧㄝ ˋ niè 足 ㄗㄨ ˊ zú 躡 ㄋㄧㄝ ˋ niè 足 ㄗㄨ ˊ zú to walk on tiptoe to step on sb's foot to join (a trade, profession etc) to associate with (a certain group of people)