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