Homonym: null (Void)
In programming, "null" is a special value that represents the absence of any object or data. It indicates that a variable has been declared but does not yet hold any meaningful value. For example, if you create a variable called user but haven't assigned it any information, it would be set to null. This helps programmers identify when something is missing or not initialized.
In databases, "null" serves a similar purpose. It signifies that a field does not contain any data. For instance, if a customer record has no phone number provided, that field would be marked as null. This allows for better data management and helps avoid confusion when analyzing information.