IPA: /ˈfæʃənˌmɒŋɡə/
KK: /ˈfæʃənˌmɔŋɡər/
A person who is very interested in fashion, often promoting or influencing trends in clothing and style.
As a fashionmonger, she always knows the latest trends before anyone else.
Fashionmonger → It is formed from "fashion" (from Old French *façon*, meaning manner or style) and "monger" (from Old English *mangere*, meaning dealer or trader). The word "fashionmonger" refers to a dealer or trader in styles or trends, particularly in clothing.
Think of a 'dealer' ('monger') in 'styles' ('fashion') — that's why a fashionmonger is someone who deals in fashion.