1. Relating to rhetoric: This is the most common meaning. Rhetoric itself is the art of effective communication. It involves using language strategically to achieve a particular goal, whether it's to inform, persuade, entertain, or evoke emotions.
2. Used for effect: A "rhetorical question" is a question asked not to get an answer, but to make a point or emphasize a statement. For example, "Do you want to live in a world without clean water?" This is a rhetorical question meant to emphasize the importance of clean water, not to actually ask the listener for their opinion.
3. Exaggerated or grandiloquent: Something described as "rhetorical" can also mean it is using elaborate or exaggerated language, often to impress or persuade. This can sometimes be used to describe language that is overly flowery or insincere.
4. Not literally meant: A "rhetorical device" is a technique used in language to achieve a particular effect. This could include things like metaphors, similes, repetition, alliteration, and more. These devices are used to make language more engaging, memorable, and persuasive.
In summary: "Rhetorical" generally refers to the skillful use of language for a specific purpose. It can describe questions, devices, or even the overall style of communication.