Intermediate means something that is in the middle or between two things. For example, if you are taking a language class, you might be considered an intermediate student if you have some basic knowledge of the language but are not yet fluent. In mathematics, an intermediate value is a number that lies between two other numbers. In a hierarchy, an intermediate position is one that is higher than some positions but lower than others.
In general, the term "intermediate" can be used to describe anything that is not at the beginning or end of a scale or spectrum. The intermediate stage of something is often one of transition or development, as it moves from one state to another.