No she doesn't. But she did somewhat "disappear" shortly before "Revenge of the Sith" took place. To learn more about it, follow the related link below.
Asajj Ventress's fate is unknown
No she doesn't.
Darth Sidious, Darth Tyranus, and Asajj Ventress but you could argue that Asajj Ventress was not a Sith but an Assassin
Anakin Skywalker Asajj Ventress Darth Tyrannus
No one knows yet. We'll have to find out
Asajj Ventress does not specifically have a meaning. This was a fictional character in the Star Wars series, this was a female character who happened to be a recurring villain in the Star Wars: Clone Wars series.
Rotta was held hostage by Asajj Ventress. He appeared in Star Wars: The Clone Wars film.
yes, he's the one with the phase 2 armor that asajj ventress kills with her lightsaber while choking him
Shaeeah is voiced by Nika Futterman, the same woman who does the voice of Asajj Ventress
Nevermind! I figured it out on my own. For those of you who don't know how: use the droids with propellers on the bottom by launching them at Ventress, then on the next section, charge up the gun on the spider droids and fire upon the stalagmites and stalactites in the cave Ventress is in to collapse the cave. I don't remember if there's anything after that, but if there is, I'm sure it's easy.
No
Dengar didn't die in The Clone Wars. You might have it confused with someone else