Opaque pointer

An opaque pointer is like a secret password. It is a special type of pointer that is used in computer programming to point to a piece of data but not show what the data is. It is like when a parent tells a child that they can open a present but not show anyone what is inside. The child will know what is inside the present, but no one else will. In the same way, an opaque pointer will point to data, but will not tell what the data is.