IPA: //ˈboʊtˌbɪldər//
KK: /ˈboʊtˌbɪldər/
A person who makes or constructs boats.
The boatbuilder crafted a beautiful wooden sailboat.
Boatbuilder → It is formed from "boat" (from Old English *bāt*, meaning a small vessel for traveling on water) and "builder" (from Old English *byldan*, meaning to construct or make). The word "boatbuilder" refers to a person who constructs or makes boats.
Think of someone who 'constructs' ('builder') a 'small vessel' ('boat') for traveling on water — that's what a boatbuilder does.