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