Story arcs are a common narrative structure used in storytelling, often seen in literature, film, and television. The term 'STORY arc' refers to the overall plot of a STORY, which is typically composed of a series of events that lead to a climax and resolution. The crossword solutions for the term STORY ARCS are PARENS, which is a six-letter word meaning 'brackets'. Parens are commonly used to indicate a STORY arc, as they are used to enclose a set of related events or ideas.