IPA: /ˈkæθlɪk/
KK: /ˈkæθəlɪk/
Relating to all people or things; universal and inclusive. It can also refer to the Roman Catholic Church or the ancient undivided Christian church.
Her interests are quite catholic, ranging from art to science.
A person who is a member of the Catholic church, particularly the Roman Catholic church, or someone who belongs to the universal Christian church.
She is a devoted Catholic who attends mass every Sunday.
Catholic → It is derived from the Greek "katholikos" (meaning universal) which is formed from "kata-" (meaning according to) and "holos" (meaning whole). The term originally referred to the universal church or the whole body of believers.
Think of 'whole' ('holos') and 'according to' ('kata-') to remember that 'catholic' means universal or pertaining to the whole.