Fiction. Novels are mostly works of fiction. They are stories that are made up, so 'fiction' can be considered another word for a novel. It emphasizes the fictional nature of the narrative.
Narrative. A novel is a long narrative work. It tells a story, and 'narrative' emphasizes the storytelling aspect, so it can be another word for novel.
A third word that can be used instead of fiction is 'fable'. However, a fable often has a moral lesson within it, which is not always the case for all types of fiction. But in a general sense, it can be considered as another word for fiction. Fables are fictional tales that usually involve animals or inanimate objects as characters, and they are passed down through generations to teach people certain values or life lessons.
It's completely fictional. The show's plot and characters were developed by the writers' imagination rather than being based on real-life events or people. But it still manages to capture the audience's attention with its charm and humor.