extremities

ɪkˈstrɛmɪti
ɛkˈstrɛmɪti

noun

the furthest point or limit of something.

the peninsula’s western extremity

limit,end,edge,side,farthest point,boundary,border,frontier,boundary line,bound,bounding line,partition line,demarcation line,end point,cut-off point,termination,perimeter,circumference,outside,outline,confine,periphery,outskirts,margin,brink,rim,lip,fringe,verge,threshold,compass,bourn,marge,skirt,ambit