朽ち木
く
ち
き
Meanings
1
decayed tree; rotten wood
Refers to wood or a tree that has rotted and lost its structural integrity. Often used literally, but can carry a poetic or melancholic tone.
I found a decayed tree in the forest.
This rotten wood can't even be used as firewood anymore.
2
obscure, meaningless life
Metaphorical use, comparing a wasted or insignificant life to a rotting tree. Often appears in literary or reflective contexts. Cross-referenced with 朽ちる sense 2.
See also: 朽ちる
He felt his life was like a decayed tree—obscure and meaningless.