Creates agent nouns.

activist

alarmist

altruist

anarchist

apologist

arborist

archivist

arsonist

artist

atheist

balloonist

baptist

bassoonist

bicyclist

biochemist

biologist

botanist

canoeist

capitalist

careerist

cartoonist

cellist

ceramicist

chauvinist

chemist

classicist

colonist

columnist

communist

conformist

copyist

cyclist

cytologist

dentist

diarist

dramatist

ecologist

economist

egotist

empiricist

ergonomist

essayist

ethicist

evangelist

exorcist

extremist

fantasist

fascist

federalist

feminist

feudalist

finalist

flautist

florist

futurist

generalist

geneticist

geologist

globalist

graffitist

guitarist

harpist

herbalist

hobbyist

humanist

humourist (US humorist)

hygienist

hypnotist

idealist

journalist

jurist

leftist

linguist

liturgist

lobbyist

loyalist

lyricist

machinist

manicurist

masochist

medallist (US medalist)

mentalist

methodist

militarist

minimalist

misogynist

modernist

monarchist

monopolist

monotheist

moralist

motorist

muralist

narcissist

naturalist

nihilist

novelist

nudist

oncologist

optimist

orchardist

organist

orthotist

pacifist

panelist

pedicurist

pessimist

pharmacist

physicist

pianist

pluralist

podiatrist

polemicist

populist

publicist

purist

racist

realist

recidivist

royalist

sadist

scientist

separatist

soloist

specialist

stockist

strategist

stylist

suffragist

tattooist

terrorist

theorist

therapist

tourist

trombonist

typist

unicyclist

unionist

urbanist

urologist

violinist

virologist

vocalist

zoologist