The front of a ship is called the fore, and the back is the "aft." A cruise ship might be so large that your cabin at the ship's fore is almost a quarter mile from your sister's in the aft.
Fore also refers more generally to something at or near the front, like someone who's at the fore of her profession as a pastry chef. As an adjective, fore also describes things close to the front — your puppy's fore legs are the ones in front. When golfers shout, "Fore!" it's a warning to watch out for the ball, or to "look ahead."