Auditor vs accountant

Hello,
In the BPP materials they often use the word “accountant” for “auditor”. Is it correct? It’s misleading for me, as my first association with “accountant” is the accountant working for the company (client of the auditor), doing regular bookeeping.
How do you know which one they’re talking about? (Of course, sometimes it’s easy to get it from the context, but not always… For example in one scenario there was a question, how should an accountant behave in a given situation and I thought about the accountant working for the company, while in fact the answer described the auditor’s behaviour)