Boat steerer, also known as helmsman, is a person responsible for navigating and steering a boat. However, in nautical jargon, there are several other synonyms that refer to this role. Some of the most popular ones include skipper, captain, coxswain, navigator, and tillerman. A skipper is often used to refer to a captain of a small boat or yacht, while a coxswain is typically used for rowers. A navigator is responsible for calculating the boat's position and planning the route, while a tillerman is responsible for steering the boat using a tiller. Despite the different terms used, their main duty is to ensure the safe and efficient navigation of the boat.