sailer / sailor are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
sailer: NA
sailor: (noun) any member of a ship's crew.
sailer: s·EY·l·er
sailor: s·EY·l·er
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)