IPA: /ˈɡæləriˌɡoʊər/
KK: /ˈɡæl.ər.iˌɡoʊ.ər/
A person who visits or attends art galleries, often to view and appreciate artworks.
As a dedicated gallerygoer, she visits new exhibitions every month.
Gallerygoer → It is formed from "gallery" (from Old French *galerie*, meaning a covered walk or corridor) and "goer" (meaning a person who goes). The word "gallerygoer" refers to a person who goes to a gallery, typically to view art or exhibitions.
Think of someone who 'goes' ('goer') to a 'covered walk' or 'corridor' ('gallery') — that's why a gallerygoer is someone who visits a gallery.
No commonly confused words.