Answer is: homogeneous mixture.
Salt (NaCl) and water make a homogeneous mixture (the same proportions of its components throughout any given sample), because both substances are polar.
Solution is homogeneous mixture composed of two or more substances.
In aqueous solution, solvent is water and solute (in this example sodium chloride) is a substance dissolved in water.
Homogeneous solution of salt and water can be separated with heating (evaporating the water).