Attrition refers to the gradual and natural reduction in the number or strength of a group or organization, typically due to a combination of factors such as retirement, resignation, death, or a decrease in resources. It is a slow and steady process that can have a significant impact on the overall functioning and success of a group or organization. In a broader sense, attrition can also refer to the wearing down or weakening of something over time, whether it be physical, emotional, or mental. This term is often used in the context of business or military operations, but can also be applied to various other situations where a gradual decline or loss is observed.