The term "general vocabulary" refers to a level of language that is widely understood and commonly used across different contexts and audiences. It typically excludes jargon, technical terms, and complex language that may not be accessible to all readers or listeners.
In terms of determining the audience, using general vocabulary can help ensure that your message is clear and easily understood by a broad range of people. If your intended audience is diverse, using general vocabulary can be an effective way to communicate without alienating anyone due to overly specialized language.
Thus, while general vocabulary doesn’t directly mean determining the audience, it is an important consideration in tailoring your communication to ensure that it resonates with and is comprehensible to your specific audience.