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