Which word means to draw attention to an important point?

Highlight is the correct choice because this word specifically means to emphasize or bring attention to something significant. In the context of literature or critical reading, highlighting an important point allows the reader to recognize and focus on key ideas or themes, which can enhance understanding and interpretation of the text.

Other options, while related to various aspects of analysis, do not effectively convey the same meaning. Establish refers to setting up or laying a foundation for a concept, which does not directly imply the act of drawing attention. Compare involves assessing similarities and differences between items, while impact pertains to the effect or influence that one object may have on another, but does not specifically indicate the act of emphasizing an important point. Thus, highlight stands out as the most appropriate choice for indicating the act of drawing attention to critical elements within a text.