Final answer:
Coraline's real world is mundane and neglectful, while the Other world seems enchanting but is actually a dangerous illusion. The real world leaves Coraline feeling insignificant, but the Other world, with its initially caring residents, is revealed to be deceitful.
Step-by-step explanation:
In Neil Gaiman's Coraline, the real world and the Other world are two contrasting realms that the protagonist, Coraline, navigates through. The real world is depicted as dull and at times neglectful. Coraline feels ignored by her parents who are too busy with their work to pay her attention. The text reads, "Sometimes you could not see that other people had their own problems and their own lives, and that you were just an extra in their story," illustrating her feelings of insignificance in her real life.
Contrastingly, the Other world initially appears as a place of enchantment and attention. Coraline is greeted by Other Mother and Other Father, who seem to be more engaging and caring than her real parents. Evidence of this can be seen when "The other mother smiled, showing a full set of teeth, and each tooth was a tiny yellowing piano key", symbolizing the false allure and underlying menace of the Other world. However, this world proves to be a sinister trap, an illusion created to entice and deceive.