Aft ALL0-9ABCDEFGHIJKLMNOPQRSTUVWXYZAft refers to the rear or back part of a ship or boat. It is the opposite of “forward” or “bow” and is often used to describe the direction or location of something on a vessel. Related content: IRPCS: International Regulations for Preventing Collisions at Sea« Back to Glossary Index