The word “really” serves as a flexible intensifier in literature, operating both to underline sincerity and to modify tone across varying contexts. For example, in Turgenev’s work ([1]) it is employed to impart an almost ritualistic earnestness, while in Dostoyevsky’s and Dickens’s dialogues ([2], [3]) it often punctuates moments of genuine confusion or incredulity. Authors such as Oscar Wilde ([4]) and Henry David Thoreau ([5]) also use “really” as a tool to question appearances and invite readers to look beyond the superficial. Moreover, in more modern narratives like those of L. M. Montgomery ([6], [7], [8]), “really” can capture a nuanced shift in mood or attitude, lending both authenticity and emphasis to character interactions. Overall, this small adverb plays multiple roles—from bolstering a statement to softening or intensifying a sentiment—demonstrating its enduring importance as a stylistic device in literature.