IPA: /pəˈreɪdə/
KK: /pəˈreɪdər/
A person who participates in a public celebration or event, often walking in a procession or display.
The parader waved to the crowd as they marched down the street during the festival.
Parader → It is formed from "parade" (from Old French *parade*, meaning a display or show) and "-er" (meaning a person who). A parader is a person who participates in a display or show, typically in a festive context.
Think of someone who is part of a 'display' or 'show' — that's what a parader does.