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