Greek-derived nouns ending in -on change to -a in the plural form.
Diction is regular. It follows the Greek -a rule.
Use plural verbs: "The dictia are ready" (not "is ready").
Yes. The plural dictia is standard across all English variants.
The word diction follows the standard English pluralization rule. When forming the plural, diction becomes dictia. This follows the Greek -a pattern, which is one of the most common plural rules in English.
Understanding why diction becomes dictia helps with spelling and pronunciation. Greek-derived nouns ending in -on change to -a in the plural form.
When using dictia in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The dictia are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.