agent
One who exerts power, or has the power to act.
One who acts for, or in the place of, another (the principal), by that person's authority; someone entrusted to act on behalf of or in behalf of another, such as to transact business for them.
A person who looks for work for another person and brokers a deal between the hiree and hirer.
Someone who works for an intelligence agency: whether an officer or employee thereof or anyone else who agrees to help their efforts (for ideology, for money, as blackmailee, or otherwise).
An active power or cause or substance; something (e.g. biological, chemical, thermal, etc.) that has the power to produce an effect.
In the client-server model, the part of the system that performs information preparation and exchange on behalf of a client or server. Especially in the phrase “intelligent agent” it implies some kind of autonomous process which can communicate with other agents to perform some collective task on behalf of one or more humans.
The participant of a situation that carries out the action in this situation, e.g. "the boy" in the sentences "The boy kicked the ball" and "The ball was kicked by the boy".
A cheat who is assisted by dishonest casino staff.
A law enforcement officer tasked with enforcing a specific field of law.
A respectful term of address for an agent, especially a law enforcement agent.

agents
plural of agent

agriculturer
agriculturist

agriculturers
plural of agriculturer

agriculturist
One who practices agriculture, a farmer, a gardener.
An expert in agriculture who advises farmers.

agriculturists
plural of agriculturist

aidman
An army medical corpsman attached to a field unit.

aidmen
plural of aidman

aikidoka
One who practices aikido, the martial art.

aikidokas
plural of aikidoka

aizkolari
Someone who practices aizkolaritza.

aizkolaris
plural of aizkolari

alchemist
One who practices alchemy.
One who blends material or substances in the nature or supposed nature of alchemy.

alchemists
plural of alchemist

alphabetist
Someone who practices alphabetism, discrimination on the basis of the first letter of a name.

alphabetists
plural of alphabetist

amorist
Someone who is in love.
Someone who writes about love.

amorists
plural of amorist

amourist
Alternative form of amorist.

amourists
plural of amourist

anchoress
A female anchorite. A woman who chooses to withdraw from the world to live a solitary life of prayer and contemplation.

anchorwoman
A female anchorperson.
The most reliable female runner in a relay team, usually the one that runs last.

anchorwomen
plural of anchorwoman

anchress
Alternative form of anchoress (“female anchorite”).

ancress
Obsolete form of anchoress (“female anchorite”).

andragologist
One who practices or specializes in the field of andragogy.

andragologists
plural of andragologist

anecdotographer
Someone who writes, collects or publishes anecdotes.

anecdotographers
plural of anecdotographer

angelographer
One who writes an angelography.

angelographers
plural of angelographer

anilinguist
One who performs anilingus.

anilinguists
plural of anilinguist

ankress
Obsolete form of anchoress (“female anchorite”).

annualist
One who writes for, or edits, an annual.

annualists
plural of annualist

anthropologian
A theologian of anthropology.

anthropologians
plural of anthropologian

anticker
One who performs antics; a comic performer.

antickers
plural of anticker

antipodist
One who practices antipodism; one who juggles using his or her feet lying down.

antipodists
plural of antipodist

antiprofessional
Opposing professionals, or the treatment of something as a profession.
Opposing prostitution, or prostitutes; antiprostitution.

antiprofessionals
plural of antiprofessional

apitourist
Someone who practices apitourism (tourism involving bee-related activities).

apitourists
plural of apitourist

appraiser
One who performs appraisals.

appraisers
plural of appraiser

aquaculturist
A person involved in aquaculture.

aquaculturists
plural of aquaculturist

aquiculturist
Alternative spelling of aquaculturist.

aquiculturists
plural of aquiculturist

arachnomancer
One who practices arachnomancy.

arachnomancers
plural of arachnomancer

arbakais
plural of arbakai

archchancellor
chief chancellor
in Germany, an officer in the Holy Roman Empire who presided over the secretaries of the court

archchancellors
plural of archchancellor

architect
A professional who designs buildings or other structures, or who prepares plans and superintends construction.
A person who plans, devises or contrives the achievement of a desired result.
An honorific given to architects. Usually capitalized or abbreviated as Arch./Ar. before the person's name.

areographer
An astronomer whose speciality is areography

areographers
plural of areographer

ariolater
one who practices the art of divination and uses interpretation to produce omens.

ariolaters
plural of ariolater

arithmancer
Someone who practices arithmancy.

arithmancers
plural of arithmancer

arithmetician
One with expertise in arithmetic; a mathematician.

arithmeticians
plural of arithmetician

armymen
plural of armyman

arselicker
Alternative form of ass-licker.

arselickers
plural of arselicker

articals
Misspelling of articles, plural of artical.

articles
plural of article

assassin
Someone who intentionally kills a person, especially a professional who kills a public or political figure.
Any ruthless killer.
A member of the Nizari Ismaili Muslim community of the Alamut Period.
An associated prime of a module.

assassins
plural of assassin

asslicker
Alternative form of ass-licker.

asslickers
plural of asslicker

astacologist
One who practices astacology.

astacologists
plural of astacologist

astrologist
One who practices astrology; an astrologer.

astrologists
plural of astrologist

astromancer
One who performs astromancy; a diviner who uses astrology.

astromancers
plural of astromancer

astrometrist
One who practices astrometry.

astrometrists
plural of astrometrist

astronavigator
One who performs astronavigation; an astronaut or space pilot.

astronavigators
plural of astronavigator

astrophilatelist
One who practices astrophilately.

astrophilatelists
plural of astrophilatelist

attainor
A juror guilty of attaint

attorney
A lawyer; one who advises or represents others in legal matters as a profession.
An agent or representative authorized to act on someone else's behalf in accordance with that person's instructions.
One such who practised in the courts of the common law.
A solicitor.
An honorific given to lawyers and notaries public, or those holders by profession who also do other jobs. Usually capitalized or abbreviated as Atty.
Clusia spp.
A prosecutor.

attorneys
plural of attorney

attornies
plural of attorney
plural of attorny

attourneie
Obsolete form of attorney.

attourneies
plural of attourneie

attourney
Obsolete spelling of attorney.

attourneys
plural of attourney

aubergistes
plural of aubergiste

aumil
Synonym of amildar.

aumils
plural of aumil

auscultator
Someone who performs auscultation.
An instrument for auscultation.
In Germany, one who had passed his first public examination in law, and who was merely retained, not yet employed or paid by government.

auscultators
plural of auscultator

authoress
A female author.

authoresses
plural of authoress

authouress
Obsolete form of authoress.

authouresses
plural of authouress

authress
Rare form of authoress.

authresses
plural of authress

autobiographer
One who writes his or her own life or biography.

autobiographers
plural of autobiographer

autofellator
One who performs autofellatio.

autofellators
plural of autofellator

autographer
Someone who writes an autograph

autographers
plural of autographer

automatist
Of or characterized by automatism

automatists
plural of automatist

autoperformer
One who performs a work that they created themselves.

autoperformers
plural of autoperformer

autopsist
One who performs an autopsy.