- -ist ► SUFFIX forming personal nouns and some related adjectives: 1) denoting a person who subscribes to a system of beliefs, prejudice or type of discrimination, expressed by nouns ending in -ism: sexist. 2) denoting a member of a profession or business activity: dentist. 3) denoting a person who uses something: flautist. 4) denoting a person who does something expressed by a verb ending in -ize: plagiarist.ORIGIN from Greek -ists.
English terms dictionary. 2015.