verbiage vs diction

verbiage and diction both are nouns.

Word	Noun	Adjective	Verb	Adverb
verbiage	Yes	No	No	No
diction	Yes	No	No	No

As nouns, verbiage and diction are synonyms defined as:

verbiage and diction: the manner in which something is expressed in words

Other synonyms of verbiage include choice of words, phraseology, phrasing, wording.

verbiage (noun)	diction (noun)
the manner in which something is expressed in words	the manner in which something is expressed in words
overabundance of words	the articulation of speech regarded from the point of view of its intelligibility to the audience