How to spell BALLISTO correctly?

If you meant "ballistic", you'll want to use that spelling instead. If you meant "ballast", try that spelling instead. If you're looking for a different word entirely, perhaps try something like "catapult" or "trebuchet" depending on the context.

• Ballista The ancient Romans used ballistas as powerful war machines to defend their cities.
• Callisto Callisto is one of Jupiter's largest moons, known for its heavily cratered surface and icy terrain.

Anonymouty

• anonymity
• anonymous