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