IPA: /ˈstɪərər/
KK: /ˈstɪrər/
A person or thing that guides or directs the course of something, especially a vehicle or a group.
The steerer helped navigate the boat through the narrow channel.
Steerer → It is formed from "steer" (from Old English *styran*, meaning to guide or direct) and "-er" (meaning a person who). A steerer is a person who guides or directs something, such as a vehicle or a course.
Think of someone who 'guides' ('steer') something — the '-er' just means a person. A steerer is someone who directs or guides.