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