In these literary works, the word “extent” serves as a versatile way to measure both physical scope and degrees of intensity. For example, it appears to describe the breadth of landscapes or territories, such as “two tracts of equal extent” [1] and the “wide extent of marshy land” [2]. Elsewhere, “extent” conveys emotional or abstract boundaries—for instance, “the extent of this love” [3] or “the echo is, to some extent, an original sound” [4]. In each case, the term anchors the concept of limit—whether geographical, personal, or conceptual—strengthening descriptions that hinge on scale or degree.