types:
ace,
adept,
champion,
genius,
hotshot,
maven,
mavin,
sensation,
star,
superhero,
superstar,
virtuoso,
whiz,
whizz,
wiz,
wizard
someone who is dazzlingly skilled in any field
agronomist
an expert in soil management and field-crop production
analyst
someone who is skilled at analyzing data
analyst
an expert who studies financial data (on credit or securities or sales or financial patterns etc.) and recommends appropriate business actions
archer,
bowman
a person who is expert in the use of a bow and arrow
authority
an expert whose views are taken as definitive
black belt
a person who attained the rank of expert in the martial arts (judo or karate)
cabalist,
kabbalist
an expert who is highly skilled in obscure or difficult or esoteric matters
exegete
a person skilled in exegesis (especially of religious texts)
geographer
a scientist trained in the study of the earth's surface
lapidarist,
lapidary
an expert on precious stones and the art of cutting and engraving them
mnemonist
an expert in the use of mnemonics; someone able to perform unusual feats of memory
nerd
an intelligent but single-minded expert in a particular technical field or profession
past master
someone who has long and thorough experience in a given activity
shark
a person who is unusually skilled in certain ways
shooter,
shot
a person who shoots (usually with respect to their ability to shoot)
talent
a person who possesses unusual innate ability in some field or activity
technician
someone known for high skill in some intellectual or artistic technique
technocrat
an expert who is a member of a highly skilled elite group
naprapath
a therapist who practices naprapathy
adder
a person who adds numbers
alleviator
a therapist who makes suffering more endurable
credit analyst
an analyst who studies the financial statements and financial history of applicants for credit in order to evaluate their creditworthiness
market analyst
an analyst of conditions affecting a market (especially the stock market)
annotator
a commentator who writes notes to a text
assayer
an analyst who assays (performs chemical tests on) metals
attache
a specialist assigned to the staff of a diplomatic mission
curandera
a Mexican woman who practices healing techniques inherited from the Mayans
curandero
a Mexican man who practices healing techniques inherited from the Mayans
detective
an investigator engaged or employed in obtaining information not easily available to the public
electrotherapist
someone who specializes in the treatment of disease by electricity
evaluator,
judge
an authority who is able to estimate worth or quality
Germanist
a specialist in the study of Germanic language or culture or literature
histologist
anatomist who specializes in the microscopic study of animal tissues
high priest
a preeminent authority or major proponent of a movement or doctrine
limnologist
a specialist in the study of freshwater ponds and lakes
longbowman
a medieval English archer who used a longbow
meteorologist
a specialist who studies processes in the earth's atmosphere that cause weather conditions
mufti
a jurist who interprets Muslim religious law
ombudsman
an official who investigates and often resolves public complaints or disputes against the government or other organizations
oculist,
optometrist
a person skilled in testing for defects of vision in order to prescribe corrective glasses
sangoma
a traditional Zulu healer and respected elder
gun,
gunman
a person who shoots a gun (as regards their ability)
actuary,
statistician
someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums)
Teutonist
a specialist in the history of the Teutonic people or language (especially with respect to the Teutonic influence on the history of England)
trailblazer
someone who marks a trail by leaving blazes on trees
trapshooter
a person who engages in shooting at clay pigeons that are hurled into the air by a trap
UNIX guru
an expert on the UNIX operating system