IPA: /fɪˈluːməˌnɪst/
KK: /fɪˈluːməˌnɪst/
A person who collects matchbooks or matchboxes, often as a hobby or for display.
As a phillumenist, she had an impressive collection of matchboxes from around the world.
Phillumenist → It is formed from "phillumeny" (from Greek "philos" meaning loving and Latin "lumen" meaning light) and the suffix "-ist" (meaning one who practices or is concerned with). A phillumenist is someone who loves collecting matchbox labels or match-related items, combining the love of light (as matches produce light) with the act of collecting.
Think of someone who 'loves' ('philos') 'light' ('lumen') and collects items related to it — that's what a phillumenist does.