syllabic script vs syllabary

syllabic script and syllabary both are nouns.

Word	Noun	Adjective	Verb	Adverb
syllabic script	Yes	No	No	No
syllabary	Yes	No	No	No

As nouns, syllabic script and syllabary are synonyms defined as:

syllabic script and syllabary: a writing system whose characters represent syllables

syllabic script (noun)	syllabary (noun)
a writing system whose characters represent syllables	a writing system whose characters represent syllables