Here's what it likely means:
* Silver Tabby: A tabby cat with a silver background color and darker stripes. This pattern is common in many breeds, including the American Shorthair, Maine Coon, and Abyssinian.
* Silver Shaded: A color pattern with a dark, "ticked" appearance over a silver background, giving the cat a shimmering effect. This is also a common pattern found in several breeds, like the Persian, Burmese, and Himalayan.
It's important to note: The term "silver tip" can be used loosely by breeders or owners to describe any cat with a silvery coat and darker tips on its fur.
If you're looking for a specific breed, you'll need to provide more information, such as the cat's size, coat length, or other characteristics.