IPA: /ˈsɪnəˌɡoʊər/
KK: /ˈsɪnəˌmoʊɡər/
A person who regularly goes to watch films in a cinema.
As a dedicated cinemagoer, she visits the theater every weekend to catch the latest releases.
Cinemagoer → It is formed from "cinema" (from Greek "kinēma", meaning movement) and "goer" (meaning a person who goes). The word "cinemagoer" refers to a person who goes to the cinema or movies.
Think of someone who enjoys 'movement' ('kinēma') on screen and is a 'goer' — that's why a cinemagoer is someone who goes to the movies.
No commonly confused words.