Is toothpaste a solid or liquid?

It is both Solid and Liquid or in other Words it's "Solution". i think what its called.

Actually its called a suspension, as particles of the solids remain whole suspended in the liquid.

In a solution, the particles of solid all break down to separate molecules (or atoms in some cases) and become part of the liquid. This does not happen in a suspension, usually because the solids are not soluble in the liquid.