- "The seal is broken" typically means that the seal is no longer intact, implying that it has been damaged or compromised in some way, often resulting in a loss of its original function (such as preventing air or liquid from passing through). A broken seal might not just have a hole—it could be cracked, torn, or entirely detached. - "The seal has a hole in it" specifically means that there is a hole, but not necessarily that the seal is completely ruined. It could still be functional in some cases, but having a hole does suggest it is damaged and may not be performing its intended job properly. Is a hole in the seal considered broken? Yes, in most contexts, a hole in the seal would be considered broken because the seal is no longer completely intact and may no longer serve its purpose of creating an airtight or watertight barrier. However, the severity of the "break" can vary depending on the size and location of the hole.

Seals usually don’t have ‘a hole’ in them, so saying that one does is probably wrong but not necessarily bad English. ‘Seal’ has two meanings here. It can be a physical piece (which could theoretically have a hole I suppose) or it is a collection of pieces which, working together, prevent the flow of gas or liquid. The seal is broken. There’s a good seal. The seal is compromised at low temperatures. (Pieces) The seal is made of rubber. (A piece)

Yes, you could say either one. Both are correct and natural.