gest / jest 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. 👇
gest: NA
jest: (noun) activity characterized by good humor.
gest: jh·EH·s·t
jest: jh·EH·s·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)