Literary notes about underline (AI summary)
In literature, the act of underlining carries a versatile role ranging from emphasizing key textual elements to marking corrections and hidden notes. In instructional texts, it directs readers to focus on specific parts of the sentence, such as identifying the principal verb or subject [1], [2], [3]. In digital works, a dotted or dashed underline not only denotes linguistic corrections but also signals the presence of hidden commentary that becomes visible with a mouse-hover [4], [5], [6]. Additionally, underlining is employed to metaphorically reinforce ideas or character traits, subtly underlining the significance of certain affiliations or attributes [7], [8]. This varied usage underscores its importance as both a visual and conceptual tool in enriching the reading and analytical experience.