There are several synonyms for the term "solution weight". One is "concentration", which refers to the amount of solute dissolved in a solvent. Another is "molarity", which is the number of moles of solute per liter of solution. "Strength" is another synonym, which measures the amount of solute in a given volume of solution. "Dilution" is also a synonym, which refers to the process of reducing the concentration of a solution by adding more solvent. Finally, "density" is another synonym, which measures the mass of solute or solvent per unit volume of solution. All of these terms are used in chemistry to describe the properties of solutions.