someone, person
者 centers on a person or agent: someone who does or is something. It marks the subject of an action or state, like a person or individual.
The origin of 者 is uncertain. It may have originally depicted a person or a marker, but the modern form combines 耂 (old) and 日 (sun/day) without a clear historical link to the meaning 'person'.
The top 耂 looks like an old person, and the bottom 日 is the sun. Imagine an old person standing under the sun—someone you can see clearly. 者 is that someone, a person.
For シャ, picture a person wearing a shawl (シャ) standing in the sun. The shawl helps you remember the reading シャ for this person kanji.
person
patient
reporter; journalist
trader; dealer; businessperson; company; vendor; supplier; manufacturer; maker; contractor
young person; youngster; young people; (the) youth
beginner
scholar; academic; scientist
doctor; physician
creator (of a work); author; writer; artist; composer; playwright; dramatist
reader
dead person; (the) deceased; (the) dead; casualties
author (usu. of a particular book); writer
the latter; the second
hero; the brave; man of valour (valor)
believer; adherent; devotee; follower
who; what kind of person
ninja; person trained in ninjutsu and employed for covert purposes in feudal Japan
third party; third person; outsider; disinterested person
person concerned; interested party; related party
actor; actress
pair; the two; both persons; both things
the former; the first
another person; others
dentist
king; monarch; ruler
winner; victor
(eligible) voter; elector; constituent; the electorate
millionaire
instrumentalist; player
messenger; envoy; emissary
batter
writer; author
bad guy; villain; evildoer; scoundrel
loser; defeated person; the defeated
weak person; the weak; vulnerable person; disadvantaged person
betrayer; traitor; turncoat; informer
strong person; the strong; the powerful
warrior
expert; knowledgeable person; authority (on a subject)
leading person; foremost figure
in good health; healthy; well; fit; robust; strong
supreme ruler; conqueror
geisha; professional female entertainer, usu. at traditional banquets
lazy person; lazy fellow; slothful person
runner
hard worker; hardworking person
advocate; disputant; debater
well-informed person; thinking person; intelligent person
coward; wimp
translator
statesman; administrator; politician; policymaker
choosing between two things; two choices
(physically) disabled person; person with a physical disability
editor; compiler
judge; selector
cleverness; skill; tact
doctor
three persons; three parties
absentee ballot; absentee voting
advocate (of a theory or principle); ideologist; ideologue
popular person; favorite; favourite
user; consumer
guardian; protector; patron; parent
candidate; applicant
person with no physical or mental disability; able-bodied person; non-disabled person
wounded person; casualty; injured person
attendee; participant; person present
alumnus (alumnae); graduate; old boy (girl)
beginner-friendly; (intended) for beginners; aimed at beginners
user; end-user; consumer; patron; customer; client
perpetrator; wrong-doer; aggressor; assailant; offender; at-fault party (e.g. in an accident)
worker
worker
participant; entrant; player; competitor
chairman; moderator; toastmaster; master of ceremonies; chairperson; host (of a TV show, etc.)
fiance; fiancee
suspect
rich person; millionaire; the wealthy
resident; inhabitant
returnee (esp. Japanese person repatriated to Japan proper from its former colonies after WWII); repatriate
applicant
owner
engineer; technical expert; technician; craftsperson
person in charge (of an area of work, etc.); person responsible; contact (person)
leader; guide; mentor; coach
(musical) conductor
donor; contributor; provider
educator; teacher; educationalist
scholar of literature; literary person; man of letters
traveller; traveler
influential person; man of importance
minor; underage person
pedestrian; walker
pedestrian mall; car-free mall; pedestrian paradise
the deceased; deaths; persons killed
casualties; the killed and wounded
vagrant; vagabond; tramp; homeless person; hobo; bum
consumer (of a product, service, etc.); customer; (end) user; buyer
victim (esp. someone killed); casualty
criminal; culprit
producer; grower; maker; manufacturer
registrant; subscriber; enrollee
researcher
scientist
manager; administrator; landlord; warden; superintendent; supervisor; custodian
person who introduces someone; introducer
manager; proprietor
experienced person; person who has had a particular experience
editor (in publishing, etc.)
clergyman; churchman; clergy
insured person
victim; injured party; sufferer
person affected by a disaster; afflicted person; victim; sufferer; survivor
suspect
viewer (esp. of television, streaming video content); audience; viewership; listener (occ. of radio, audio streaming content)
press conference; news conference
visitor
person in charge (including a supervisory role for other staff); person responsible for ...; responsible party; supervisor; manager
(physically) disabled person; person with a physical disability
spouse; wife; husband; partner
pioneer; settler; colonist
developer
person concerned; people involved (in an event); those concerned; staff
disabled person; person with a (physical or mental) disability
old person; elderly person; senior citizen