A wooden table is a rigid object having a definite shape and definite volume. Since a wooden table has these basic characteristic of solid state( rigidity ,definite shape and definite volume), it should be called a solid.
A solid has a fixed shape because the particles of a are closely packed and their positions are fixed due to the strong Force of attraction between them.
A solid has a fixed volume because the spaces between its particles are fixed.
Rigidity is the property of a solid to resist change in its shape when an outside force is applied. The particles in a solid are very closely packed and there are very strong forces of attraction between them so solids possesses high rigidity.