IPA: /ˈvoʊɡɪʃnəs/
KK: /ˈvoʊɡɪʃnəs/
The quality or state of being fashionable or in style.
The voguishness of her outfit made her the center of attention at the party.
Voguishness is formed from "voguish" (from French *vogue*, meaning fashion or style) and the suffix "-ness" (meaning the state or quality of). The word refers to the state of being fashionable or stylish.
Think of 'vogue' as representing fashion, and '-ness' indicating a state. This helps you remember that 'voguishness' means the quality of being in fashion.