brink Definition

brink
noun

1. The edge or border of a steep dangerous place or of a river.
2. The point immediately before something dangerous, unknown or exciting, etc starts or occurs.

Example: the brink of a new era
Example: the brink of disaster
Thesaurus: edge, threshold.

Idiom: on the brink of something

At the very point or moment when it might start or occur, etc; extremely near it.
Example: on the brink of extinction

Etymology: 13c: probably Danish, meaning ‘steepness' or ‘slope'.