n.
1.
Hardness, firmness, solidness, density, compactness, consistency.
2.
Density, compactness, fulness.
3.
Strength, stability, massiveness.
4.
Reality, truth, weight, validity, justice, gravity, importance, firmness, soundness, strength, certainty, certitude.
5.
( Geom. ) Volume, solid contents, cubic contents.