The phrase "keep aft" is often used in the context of sailing or boating, meaning to stay towards the back of the vessel. Synonyms for this phrase include "remain astern," "hold the stern position," "stay aft," or simply "keep back." These phrases are important for sailors to know and understand to ensure proper positioning and maneuvering of the boat. Other related terms include "helm" and "sternpost," referring to the steering mechanism and the post at the back of the boat, respectively. Understanding and correctly using these synonyms helps ensure safety and success on the water.