Is a Doughnut Without a Hole?

A bag without a hole is not a bago, let's say a good one. A golf course probably isn't a golf course without holes. The whole is integral to the doughnut, but it's also nothing and not part of the doughnut. This is quite a classic problem in philosophy - how we can speak about the existent if indeed there is no thing for our language to refer to? We can speak about absences of things as things in themselves like we just saw with wholes or nothingness.