The word "synoptics" generally refers to the first three Gospels of the New Testament, which share a similar narrative and structure. However, there are several synonyms that can be used to describe this concept. One such word is "harmony," which emphasizes the unity and coherence of the Gospels. Another synonym is "compendium," which suggests a concise and comprehensive summary of the Gospel accounts. "Concordance" is another option, which emphasizes the similarity and agreement between the three Gospels. Finally, "parallel" can be used to describe the way in which the Gospels present similar events and teachings in a side-by-side fashion.