(n.) The edge, margin, or border of a steep place, as of a precipice; a bank or edge, as of a river or pit; a verge; a border; as, the brink of a chasm. Also Fig.

bank board border bordure brim brow coast edge featheredge flange frame fringe hem labellum labium labrum ledge limb limbus lip list marge margin perimeter periphery point ragged edge rim selvage shore side sideline skirt threshold verge