IPA: /ˈɡoʊstˌraɪtər/
KK: /ˈɡoʊstˌraɪtər/
A person who writes for someone else, allowing that person to take credit for the work.
The author hired a ghostwriter to help complete her memoir.
Ghostwriter → It is formed from "ghost" (from Old English *gāst*, meaning spirit or soul) and "writer" (from Old English *writere*, meaning one who writes). A ghostwriter is someone who writes for another person, often without being credited, as if the writing is coming from the 'spirit' of the credited author.
Think of a 'spirit' ('ghost') that helps someone 'write' — a ghostwriter is someone who writes for another, often invisibly.
No commonly confused words.