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