Subplots are one of the most important aspects of any literary work. They add depth and complexity to the main plot and keep the readers engaged. There are various synonyms for the word subplots, and each of them adds a unique flavour to the literary content. Some of these synonyms are secondary plot, auxiliary plot, side story, subplot thread, and parallel plot. A secondary plot is a storyline that runs alongside the main plot and contributes to the development of characters, their motivations, and actions. An auxiliary plot provides additional information and backstory to the main plot, while a side story adds a different perspective to the same sequence of events. A subplot thread is a storyline that links the secondary plot to the main storyline, and a parallel plot is a separate plot that occurs concurrently with the main one.