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