n. 25B6; noun
the margin of the lake : EDGE, side, verge, border, perimeter, brink, brim, rim, fringe, boundary, limits, periphery, bound, extremity; poetic/literary marge, bourn, skirt.
there's no margin for error : LEEWAY, latitude, scope, room, room for manoeuvre, space, allowance, extra, surplus.
they won by a narrow margin : GAP, majority, amount, difference.