Solidity

Definitions

1. The state or quality of being solid.
   countable, uncountable
2. Moral firmness; validity; truth; certainty.
   countable, uncountable
3. The solid contents of a body; volume; amount of enclosed space.
   countable, uncountable

Equivalents

Examples

“If colours, sounds, tastes, and smells be merely perceptions, nothing we can conceive is possest of a real, continu'd, and independent existence; not even motion, extension and solidity, which are the primary qualities chiefly insisted on.”

CEFR level