A can is solid. A telephone has definite shape. It has a certain volume. The telephone is a solid. Matter that has no definite shape but has definite volume is a liquid .
Water has definite volume.
You can measure how much water you have in a cup. But the water has no specific shape. You can pour a cup of water into a bowl and it takes the shape of the bowl. But it still has a volume of 1 cup. Definite volume, no definite shape.