Nouns ending in -s, -x, -z, -ch, or -sh add -es to form the plural. This makes the word easier to pronounce.
Indianapolis is regular. It follows the -es Addition rule.
Use plural verbs: "The indianapolises are ready" (not "is ready").
Yes. The plural indianapolises is standard across all English variants.
The word indianapolis follows the standard English pluralization rule. When forming the plural, indianapolis becomes indianapolises. This follows the -es Addition pattern, which is one of the most common plural rules in English.
Understanding why indianapolis becomes indianapolises helps with spelling and pronunciation. Nouns ending in -s, -x, -z, -ch, or -sh add -es to form the plural. This makes the word easier to pronounce.
When using indianapolises in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The indianapolises are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.