stanch / staunch 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. 👇
stanch: NA
staunch: NA
stanch: s·t·AE·n·ch
staunch: s·t·AO·n·ch
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)