Solid, robust.
Pertaining to the International Church of the Foursquare Gospel.
Having four equal sides; square.
Pertaining to a four-square cipher.
A boxy style of domestic architecture with four rooms to a floor, one of which is usually a stair hall.
A four-square cipher.
Having good substance; strong; stout; solid; firm.
Most important; essential.
Not imaginary; real; actual; true; veritable.
Having a substance; actually existing.
Corporeal; material; firm.
Possessed of goods or an estate; moderately wealthy.
Satisfying; having sufficient substance to be nourishing or filling.
Large in size, quantity, or value; ample; significant.
Anything having substance; an essential part.