Aeris/Aerith

[Big D]

Also, her name has never been vocally said any any of her other appearances.

In the Japanese dialogue for Crisis Core, she introduces herself to Zack by name. It's in one of the trailers; subtitled as "Aerith", and pronounced as something like "eh-ristu". I'm assumings she'll make the same introduction in the English version, so we'll have a definitive pronunciation of Aerith at last.