IPA: //ˈseɪlər//
KK: /ˈseɪlər/
A type of boat or ship that is designed to be moved by sails.
The sailer glided smoothly across the water, powered by the wind.
Sailer → The word 'sailer' comes from the Old English 'segel' (meaning sail) and the suffix '-er' (meaning a person who). A sailer is a person who operates or works with sails, typically on a boat or ship.
Think of someone who works with 'sails' ('segel') — that's why a sailer is a person who sails.