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