The solution that has relatively a less amount of solute for a given amount of solvent is called dilute solution.
The solution that has relatively a large amount of solute for a given amount of solvent is called concentrated solution.
The solution, which can dissolve excess solute at the given temperature, is called unsaturated solution at that temperature.
The solution, which cannot dissolve excess of the solute at a particular temperature, is called a saturated solution at that temperature.
The saturated solution at higher temperature that holds excess solute than the required amount for saturated solution at that temperature is called super saturated solution.