Solvent, solute, solution, soluble.
If you ever put sugar or salt in water and stirred it, you will see the sugar and salt disappear. The sugar and salt have dissolved.
Water is considered the universal solvent because it dissolves more substances than any other liquid.
Dissolved means that a solid substance has been incorporated or absorbed into a liquid and become a solution.
When a solid is added to a liquid and the solid disappears, we say that the solid has been dissolved. If sugar dissolves in water we say the sugar is soluble and the sugar is the solute. The amount of substance in a certain volume of solution is called its concentrate i.e. how crowded the solute particles are. A saturated solution is a solution into which no more solute can be dissolved.