1. The edge of a steep place
   "The hiker carefully approached the brink of the cliff"
    
2. A region marking a boundary
   "The company was on the brink of bankruptcy";
   - threshold, verge
    
3. The limit beyond which something happens or changes
   "on the brink of bankruptcy";
   - verge

Derived forms: brinks

Type of: border, bound, boundary, edge, limit

Encyclopedia: Brink, Joel