Hyperbole is a literary device that involves using exaggeration or overstatement for emphasis or effect. It is often used to make a point or to convey strong emotions in a more dramatic or expressive way.

In "A Red, Red Rose," the speaker uses hyperbole in the line "Till a’ the seas gang dry, my dear, / And the rocks melt wi’ the sun!" This is an exaggerated way of expressing the depth and endurance of the speaker's love, as it suggests that his love will last even beyond the boundaries of the natural world.

Another example of hyperbole in the poem is the line "Tho’ it were ten thousand mile!" This exaggerates the distance the speaker is willing to travel to return to his beloved, emphasizing the strength of his devotion to her.

Hyperbole is used in literature to create emphasis and to convey strong emotions in a more vivid and expressive way. In "A Red, Red Rose," the hyperbolic language helps the reader understand the intensity and depth of the speaker's love for his beloved.

this was on the subject guide page btw https://nebkoguide.com/subjects/class-11-english