A region marking a boundary.

synonyms: threshold, verge.

Roget 231: edge, verge, brink, brow, brim, margin, border, confine, skirt, rim, flange, side, mouth; jaws, chops, chaps, fauces; lip, muzzle.    threshold, door, porch; portal etc. (opening) 260; coast, shore.    frame, fringe, flounce, frill, list, trimming, edging, skirting, hem, selvedge, welt, furbelow, valance, gimp.    ... show more

Dutch: drempel

The edge of a steep place.

Dutch: boord, rand

The limit beyond which something happens or changes:
— On the brink of bankruptcy.

synonym: verge.