开立方 kāilìfāng to extract a cube root Origin Definitions Defs Strokes Stroke Words Sentences Sents 开 開 kāi verb to start to begin; to start; to set in motion; to initiate (an action, term, or schedule)立方 lìfāng noun cube The product of a number multiplied by itself twice (the third power); a three-dimensional solid object with six equal square faces (short form for 立方体 lìfāngtǐ).