Nautical almanac is a term used to describe a book or publication containing information on celestial bodies, astronomical phenomena, and other important data for marine navigation. Some synonyms for nautical almanac could include marine almanac, sea almanac, or ship's almanac. Other related words might include navigational charts, sailing guides or seafaring reference manuals. These resources are essential tools used by sailors, navigators, and other seafarers to navigate safely and accurately on the open sea. With detailed information on tides, currents, and celestial bodies, nautical almanacs help sailors plan voyages and avoid hazards, making them indispensable for anyone setting sail on the high seas.