solfa syllable vs soh

solfa syllable and soh both are nouns.

Word	Noun	Adjective	Verb	Adverb
solfa syllable	Yes	No	No	No
soh	Yes	No	No	No

As nouns, soh is a hyponym of solfa syllable; that is, soh is a word with a more specific, narrower meaning than solfa syllable:

solfa syllable: one of the names for notes of a musical scale in solmization
soh: the syllable naming the fifth (dominant) note of any musical scale in solmization

Other hyponyms of solfa syllable include do, doh, ut, ray, re, mi, fa, so, sol, la, lah, si, te, ti.

solfa syllable (noun)	soh (noun)
one of the names for notes of a musical scale in solmization	the syllable naming the fifth (dominant) note of any musical scale in solmization