sol-fa

n (also ,tonic sol-`fa) (in teaching sb to sing) method of showing musical notes by syllables (eg do, re, mi, fa, so, la, etc) （声乐教学中的）阶名唱法, 首调唱法（以do、 re、 mi、 fa、 so、 la等唱名唱出音符的方法）.

soft-soap, soft-spoken, softball, soften, softener, softish, softly, softness, software, softwood, softy (also softie), soggily, sogginess, soggy, soh, soigne, soil, soiree, sojourn, sol, solace, solar, solar cell device, solar plexus, solar system, solarium, sold, solder, soldering-iron, soldier, soldierly (also soldier-like), soldiery, sole, solecism, solely, solemn, solemnity, solemnization, solemnisation, solemnize, solemnise, solemnly,