Edge

刃

rèn

(thin cutting side of the blade of an instrument)

边

biān

(in graph theory: any of the pairs of vertices in a graph)

邊 /边

biān

(in graph theory: any of the pairs of vertices in a graph)

邊界 /边界

biānjiè

(boundary line of a surface)

邊緣 /边缘

biānyuán

(boundary line of a surface)

寸止

cùnzhǐ

(to delay one's orgasm)