noun
rottenness; decay; corruption
Refers to the state of being rotten, physically or metaphorically. Often used in compounds like 腐りかけ (starting to rot) or 腐りやすい (perishable).
この果物は腐りが早い。
This fruit rots quickly.
組織の腐りを正す必要がある。
We need to root out the corruption in the organization.