Suggest underlining the nouns. I describe a bank teller system and students invariably find BankAccount. Then I use class BankAccount to introduce objects and classes. I remind students that it is part of something bigger. Emphasize that objects know things and can do things.
Objects provide services.
You deposit to and withdraw from BankAccounts. They can also know the account holder and the balance. The first classes that students see and write should have more than once instance variable, and they should have at least two types of instance variables. Avoid BankAccounts that are little more than a wrapper around a number. Example programs should have more than one instance of one class.