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