Enchiridion is a Greek term that means 'handbook' or 'manual'. Synonyms for the word 'enchiridions' include compendium, guidebook, handbook, manual, roadmap, and vade mecum. These words all describe texts that contain vital and concise information. A compendium could be a book that collects an array of different items in one volume. A guidebook or a handbook is a manual that provides help or instruction. A roadmap is a plan or guide that outlines a path to be followed. A vade mecum is a trusted companion or constant resource. Enchiridions, in any of its synonyms, can be a practical source of information, providing guidelines and instructions.