1. Stockpile, secret repository: The rebels had a cache of firearms in the mountains.
2. A place for concealment and safekeeping, as of valuables: Not trusting banks any more, Samantha's father hid his money in a cache in the family's bookcase.

The police found the caches of stolen cars in various places in the woods.

3. A small fast-memory storage area in a computer that holds recently accessed data, designed to speed up subsequent access to the same data: Your computer keeps information called cache memory. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous reading of data), it does not have to do the more time-consuming reading of data from a larger memory.

Using disk cache memory speeds up computer operations, because accessing data stored in RAM (Random Access Memory) is much faster than accessing data stored on a hard drive.

Payment for goods or services in currency: The purchases were paid for with cash.

To exchange for or to convert into ready money: The store will cash your check.