descendant / descendent 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. 👇
descendant: (noun) a person considered as descended from some ancestor or race. (adjective) going or coming down. (adjective) proceeding by descent from an ancestor.
descendent: NA
descendant: d·ih·s·EH·n·d·ah·n·t
descendent: d·ih·s·EH·n·d·ah·n·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)