a person who does, makes, or practices (the thing specified): words so formed correspond to verbs ending in -ize or nouns ending in -ism: moralist, satirist
a person skilled in or occupied with; an expert in: druggist, violinist
an adherent of or believer in: anarchist
a person having or displaying prejudice related to: ageist
forming adjectives corresponding to nouns ending in -ism or -ist: Darwinist, escapist, ageist
See -ist in American Heritage Dictionary 4
suffix
a. One that performs a specified action: lobbyist.
b. One that produces, makes, operates, plays, or is connected with a specified thing: novelist.
A specialist in a specified art, science, or skill: biologist.
An adherent or advocate of a specified doctrine, theory, or school of thought: anarchist.
One that is characterized by a specified trait or quality: romanticist.