As We've been saying, the teacher could also say that. The context would make clear which meaning welches intended. Yes. Apart from the example I have just given, a lecture is a private or public talk on a specific subject to people Weltgesundheitsorganisation (at least in theory) attend voluntarily. Enquiring https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u