First it's spelled "Predator". A Predator is an animal that naturally preys on others.
it is pretidor
A predator to a spider is any organism that hunts and feeds on spiders. Common predators include birds, lizards, other larger spiders, and certain insects like wasps. These predators play a role in controlling spider populations within ecosystems. Additionally, some mammals, amphibians, and even other arachnids can also be considered predators of spiders.