IPA: /ˈbɪbliˌpɒlɪst/
KK: /ˈbɪbliˌpɒlɪst/
A person who buys and sells books, especially rare or valuable ones.
The bibliopolist had an impressive collection of first editions.
Bibliopolist → It is formed from "biblion" (from Greek, meaning book) and "polistes" (from Greek, meaning seller). A bibliopolist is someone who sells books, particularly rare or antiquarian ones.
Think of a 'book' ('biblion') seller ('polistes') — that's what a bibliopolist does.
No commonly confused words.