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