In your boat, you may have a galley, salon, berths, and a head. At home, you'd call the same places your kitchen, living room, beds, and bathroom. A bulkhead is no longer the cellar door, but has become the partition that separates one compartment from another. A wheel may be either a propeller or a steering wheel, and while an outboard may be a small motor, it's also the direction toward a boat's exterior - or outside of it. You'll often hear references to port and starboard.
Port is the left hand side of a boat when it is facing ahead.
Starboard is the right hand side. Even cordage has its own vocabulary. Never ask for a rope, cord, or wire.