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