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