To "accumulate" means to gather or collect items, resources, or information over time. This process can occur in various contexts, such as accumulating wealth, knowledge, or physical objects. For example, a person might accumulate savings in a bank account or accumulate books in a personal library. In nature, accumulation can also refer to the build-up of materials, like snow or sediment. In economics, businesses may accumulate assets to enhance their value. Overall, accumulation involves a gradual increase, often leading to significant results or changes in a person's life or environment.