The title "倚天屠龙记" is formed by sequentially combining five characters: "倚" (to lean on), "天" (sky/heaven), "屠" (to slaughter), "龙" (dragon), and "记" (record). "倚天" and "屠龙" each refer to key elements within the story, specifically, legendary weapons known as the Heavenly Sword and the Dragon-Slaying Saber, while "记" indicates that this is a narrative account or chronicle of events involving these artifacts.