essential; extremely important
Related to a foundation. base, or basis; serving as a foundation.
The lowest frequency of a periodic waveform.
A main or major principle, rule, law, etc. which serves as the foundation or basis of a system; an essential part
The lowest partial of a complex tone.
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.
Having good substance; strong; stout; solid; firm.
Anything having substance; an essential part.