(ふち)

ふち
noun
deep pool, abyss
geography
1. deep pool, deep spot in a river
A deep, still section of a river or stream where the water is calm on the surface but deep below. Contrasts with () (shallow, fast-flowing section).
I fish in the deep pool of the river.
This area is a deep pool, so swimming is dangerous.
A mountain stream where shallows and deep pools alternate is a famous fishing spot.
2. abyss, depths
Used figuratively for a deep, dark, or unfathomable state, such as the depths of despair or a perilous situation.
絶望(ぜつぼう)(ふち)()たされた。
I was driven to the brink of despair.
The company was on the verge of bankruptcy.
They barely managed to step back from the brink of war.

Usage

In the literal sense, (ふち) refers to a deep, quiet section of a river, as opposed to () (a shallow, fast-flowing section). The proverb (ふち)()()える (shallows change to deep pools) describes the unpredictability of fortune.

The figurative sense (brink, verge) is extremely common: ~(ふち) (the brink of ~). This pattern is used with negative situations like 絶望(ぜつぼう)(ふち) (the brink of despair), ()(ふち) (the brink of death), and 破滅(はめつ)(ふち) (the brink of ruin).

Common collocations