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