"Run lines" can refer to the process of rehearsing lines for a theatrical performance or film shoot. Some synonyms for this term include "practice lines," "memorize dialogue," and "run-throughs." Another related phrase is "line readings," which describes the various interpretations actors give to their lines during the rehearsal process. "Blocking" is another term that is often used in conjunction with "run lines" since it refers to the physical movement on stage and may impact how lines are delivered. Ultimately, the goal of "running lines" is to become familiar and comfortable with the material, allowing the performers to deliver a successful and compelling performance.