Nouns ending in -a (often Latin or scientific) add -e to form the plural.
Wikipedia is regular. It follows the -ae Addition rule.
Use plural verbs: "The wikipediae are ready" (not "is ready").
Yes. The plural wikipediae is standard across all English variants.
The word wikipedia follows the standard English pluralization rule. When forming the plural, wikipedia becomes wikipediae. This follows the -ae Addition pattern, which is one of the most common plural rules in English.
Understanding why wikipedia becomes wikipediae helps with spelling and pronunciation. Nouns ending in -a (often Latin or scientific) add -e to form the plural.
When using wikipediae in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The wikipediae are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.