| 1. | the edge or margin of a steep place or of land bordering water. |
| 2. | any extreme edge; verge. |
| 3. | a crucial or critical point, esp. of a situation or state beyond which success or catastrophe occurs: We were on the brink of war. |

brink (brĭngk) n.
[Middle English, probably of Scandinavian origin .] |