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