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