者

geisha; professional female entertainer, usu. at traditional banquets

Law

suspect

inexperienced person; novice; greenhorn; green hand

Common noun

advocate (of a theory or principle); ideologist; ideologue

Noun, used as a suffix

-ist (i.e. adherent to a belief system)

Archaic; Common noun

socialist; communist; anarchist

rude person; villain; blackguard; scoundrel; rogue; libertine

honest person

Occ. 無頼漢

ruffian; scoundrel; rogue; rascal; villain; hoodlum; thug

mole; whistle-blower; informant; betrayer

adulterer; adulteress

hypocrite; dissembler; wolf in sheep's clothing; fox in a lamb's skin

advanced student; advanced learner; advanced practitioner; experienced person

to cause casualties; to result in deaths

Usu. as 〜ではない, 〜じゃない, etc.

ordinary person

person who gets easily elated (when praised, etc.); person who readily chimes in with others; person who gets carried away easily

old person; elderly person; senior citizen

burden; nuisance; bother; troublemaker

hanger-on; dependent; parasite

infected person; carrier (e.g. of a virus)

statesman; administrator; politician; policymaker

missing person

Often in self-reference

writer; author

client; requester

applicant; candidate

developer

intruder; trespasser

maker; manufacturer; producer

producer (of a film, play, etc.)