境目

(1)the boundary line or the area immediately inside the boundary

(2)境界線、もしくは境界のすぐ内側の領域

(3)a line determining the limits of an area

(4)領域の範囲を決定づける線

(5)a crucial stage or turning point in the course of something; "after the crisis the patient either dies or gets better"

(6)何かの過程での正念場か転機

(7)the boundary of a specific area

(8)ある区域の境界

(9)the line or plane indicating the limit or extent of something

(10)ものの限界または範囲を示す線あるいは面