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294 Nouns That Contain ATOR

Part of Speech:
Word Definitions Synonyms
dictatorship (noun) a form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.) Synonyms: absolutism, authoritarianism, Caesarism, despotism, monocracy, one-man rule, shogunate, Stalinism, totalitarianism, tyranny
differentiator (noun) a person who (or that which) differentiates Synonyms: discriminator
dilator (noun) a surgical instrument that is used to dilate or distend an opening or an organ Synonyms: dilater
(noun) a drug that causes dilation
(noun) a muscle or nerve that dilates or widens a body part
dilatoriness (noun) slowness as a consequence of not getting around to it Synonyms: procrastination
disambiguator (noun) (computer science) a natural language processing application that tries to determine the intended meaning of a word or phrase by examining the linguistic context in which it is used
discriminator (noun) a person who (or that which) differentiates Synonyms: differentiator
disseminator (noun) someone who spreads the news Synonyms: propagator
dissimulator (noun) a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives Synonyms: dissembler, hypocrite, phoney, phony, pretender
duplicator (noun) apparatus that makes copies of typed, written or drawn material Synonyms: copier
educator (noun) someone who educates young people Synonyms: pedagog, pedagogue
ejaculator (noun) a speaker who utters a sudden exclamation
(noun) a man who ejaculates semen
elevator (noun) lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building Synonyms: lift
(noun) the airfoil on the tailplane of an aircraft that makes it ascend or descend
eliminator (noun) an agent that eliminates something
emancipator (noun) someone who frees others from bondage Synonyms: manumitter
emulator (noun) someone who copies the words or behavior of another Synonyms: ape, aper, copycat, imitator
enumerator (noun) someone who collects census data by visiting individual homes Synonyms: census taker
epilator (noun) a cosmetic for temporary removal of undesired hair Synonyms: depilator, depilatory
equator (noun) an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles
(noun) a circle dividing a sphere or other surface into two usually equal and symmetrical parts
equatorial (noun) a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it
equivocator (noun) a respondent who avoids giving a clear direct answer Synonyms: hedger, tergiversator
eradicator (noun) someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects) Synonyms: exterminator, terminator
escalator (noun) a stairway whose steps move continuously on a circulating belt Synonyms: moving staircase, moving stairway
(noun) a clause in a contract that provides for an increase or a decrease in wages or prices or benefits etc. depending on certain conditions (as a change in the cost of living index) Synonyms: escalator clause
estimator (noun) an expert at calculation (or at operating calculating machines) Synonyms: calculator, computer, figurer, reckoner
evaluator (noun) an authority who is able to estimate worth or quality Synonyms: judge
excavator (noun) a machine for excavating Synonyms: digger, power shovel, shovel
(noun) a workman who excavates for foundations of buildings or for quarrying
excogitator (noun) a thinker who considers carefully and thoroughly
expectorator (noun) a medicine promoting expectoration Synonyms: expectorant
(noun) a person who spits (ejects saliva or phlegm from the mouth) Synonyms: spitter
expurgator (noun) a person who edits a text by removing obscene or offensive words or passages Synonyms: bowdleriser, bowdlerizer
exterminator (noun) someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects) Synonyms: eradicator, terminator
extirpator (noun) a farm implement used to remove weeds.
fabricator (noun) someone who tells lies Synonyms: fibber, storyteller
facilitator (noun) someone who makes progress easier
feudatory (noun) a person holding a fief; a person who owes allegiance and service to a feudal lord Synonyms: liege, liege subject, liegeman, vassal
flocculator (noun) An apparatus used in the process of flocculation.
fornicator (noun) someone who commits adultery or fornication Synonyms: adulterer
fryolator (noun) A kitchen appliance for deep frying; its size depends on intended use. Synonyms: deep fat fryer, deep fryer, frier, fryer
fumigator (noun) a device that generates a gas for the purpose of disinfecting or eradicating pests
(noun) someone whose job is to fumigate
gator (noun) either of two amphibious reptiles related to crocodiles but with shorter broader snouts Synonyms: alligator
generator (noun) engine that converts mechanical energy into electrical energy by electromagnetic induction
(noun) an apparatus that produces a vapor or gas
(noun) an electronic device for producing a signal voltage
(noun) someone who originates or causes or initiates something Synonyms: author, source
gladiator (noun) (ancient Rome) a professional combatant or a captive who entertained the public by engaging in mortal combat
(noun) a professional boxer Synonyms: prizefighter
granulator (noun) a machine that forms material (such as plastics, bottles, organics, etc.) into granules. Synonyms: granulator machine
hesitator (noun) one who hesitates (usually out of fear) Synonyms: hesitater, vacillator, waverer
illustrator (noun) an artist who makes illustrations (for books or magazines or advertisements etc.)
imitator (noun) someone who copies the words or behavior of another Synonyms: ape, aper, copycat, emulator
(noun) someone who (fraudulently) assumes the appearance of another Synonyms: impersonator
impersonator (noun) someone who (fraudulently) assumes the appearance of another Synonyms: imitator
incinerator (noun) a furnace for incinerating (especially to dispose of refuse)
incubator (noun) apparatus consisting of a box designed to maintain a constant temperature by the use of a thermostat; used for chicks or premature infants Synonyms: brooder
indicator (noun) a device for showing the operating condition of some system
(noun) a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time Synonyms: index, index number, indicant
(noun) a signal for attracting attention
(noun) (chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction
infiltrator (noun) an intruder (as troops) with hostile intent
(noun) someone who takes up a position surreptitiously for the purpose of espionage
inflator (noun) an air pump operated by hand to inflate something (as a tire) Synonyms: inflater
inhalator (noun) a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion Synonyms: inhaler
(noun) a breathing device for administering long-term artificial respiration Synonyms: respirator
initiator (noun) a person who initiates a course of action Synonyms: instigator
innovator (noun) someone who helps to open up a new line of research or technology or art Synonyms: groundbreaker, pioneer, trailblazer
inoculator (noun) a medical practitioner who inoculates people against diseases Synonyms: vaccinator
instigator (noun) a person who initiates a course of action Synonyms: initiator
(noun) someone who deliberately foments trouble Synonyms: firebrand, inciter, instigant, provoker
instillator (noun) medical apparatus that puts a liquid into a cavity drop by drop
insulator (noun) a material such as glass or porcelain with negligible electrical or thermal conductivity Synonyms: dielectric, nonconductor
integrator (noun) a measuring instrument for measuring the area of an irregular plane figure Synonyms: planimeter
intermediator (noun) a negotiator who acts as a link between parties Synonyms: go-between, intercessor, intermediary, mediator
interrogator (noun) a questioner who is excessively harsh Synonyms: inquisitor
interrogatory (noun) formal systematic questioning Synonyms: examination, interrogation
invalidator (noun) an official who can invalidate or nullify Synonyms: nullifier, voider
investigator (noun) someone who investigates
(noun) a scientist who devotes himself to doing research Synonyms: research worker, researcher
(noun) a police officer who investigates crimes Synonyms: detective, police detective, tec
invigilator (noun) someone who watches examination candidates to prevent cheating
invigorator (noun) an agent that gives or restores life or vigor Synonyms: enlivener, quickener
judicatory (noun) the system of law courts that administer justice and constitute the judicial branch of government Synonyms: judicature, judicial system, judiciary
laboratory (noun) a workplace for the conduct of scientific research Synonyms: lab, research lab, research laboratory, science lab, science laboratory
(noun) a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation Synonyms: testing ground
lachrymator (noun) a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds Synonyms: lacrimator, tear gas, teargas
lacrimator (noun) a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds Synonyms: lachrymator, tear gas, teargas
laminator (noun) Any of a range of machines used for lamination. Synonyms: laminating machine
(noun) a person who makes laminates (especially plastic laminates)
lapidator (noun) an attacker who pelts the victim with stones (especially with intent to kill) Synonyms: stoner
laudator (noun) someone who communicates high praise Synonyms: extoller, lauder
lavatory (noun) a room or building equipped with one or more toilets Synonyms: bathroom, can, john, lav, privy, toilet
(noun) a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face Synonyms: basin, washbasin, washbowl, washstand
(noun) a toilet that is cleaned of waste by the flow of water through it Synonyms: flush toilet
legislator (noun) someone who makes or enacts laws
legislatorship (noun) the office of legislator
levator (noun) a muscle that serves to lift some body part (as the eyelid or lip)
liberator (noun) someone who releases people from captivity or bondage
liquidator (noun) (law) a person (usually appointed by a court of law) who liquidates assets or preserves them for the benefit of affected parties Synonyms: receiver
(noun) a criminal who commits homicide (who performs the unlawful premeditated killing of another human being) Synonyms: manslayer, murderer
litigator (noun) (law) a party to a lawsuit; someone involved in litigation Synonyms: litigant
locator (noun) a person who fixes the boundaries of land claims Synonyms: locater
lubricator (noun) a substance capable of reducing friction by making surfaces smooth or slippery Synonyms: lube, lubricant, lubricating substance
machinator (noun) a member of a conspiracy Synonyms: coconspirator, conspirator, plotter
mandator (noun) an authority who issues a mandate
mandatory (noun) a territory surrendered by Turkey or Germany after World War I and put under the tutelage of some other European power until they are able to stand by themselves Synonyms: mandate
(noun) the recipient of a mandate Synonyms: mandatary
manipulator (noun) an agent that operates some apparatus or machine Synonyms: operator
(noun) a person who handles things manually
masturbator (noun) a person who practices masturbation Synonyms: onanist
mediator (noun) a negotiator who acts as a link between parties Synonyms: go-between, intercessor, intermediary, intermediator
migrator (noun) an animal (especially birds and fish) that travels between different habitats at particular times of the year
(noun) traveler who moves from one region or country to another Synonyms: migrant
minicalculator (noun) (old-fashioned) a very small handheld calculator.
moderator (noun) someone who mediates disputes and attempts to avoid violence
(noun) someone who presides over a forum or debate
(noun) in the Presbyterian church, the officer who presides over a synod or general assembly
(noun) any substance used to slow down neutrons in nuclear reactors
moderatorship (noun) the position of moderator
moratorium (noun) suspension of an ongoing activity
(noun) a legally authorized postponement before some obligation must be discharged
motivator (noun) a positive motivational influence Synonyms: incentive, inducement
mutilator (noun) a person who mutilates or destroys or disfigures or cripples Synonyms: maimer, mangler
narrator (noun) someone who tells a story Synonyms: storyteller, teller
natator (noun) a person who travels through the water by swimming Synonyms: bather, swimmer
natatorium (noun) pool that provides a facility for swimming Synonyms: swimming bath, swimming pool
navigator (noun) in earlier times, a person who explored by ship
(noun) the member of an aircrew who is responsible for the aircraft's course
(noun) the ship's officer in charge of navigation Synonyms: sailing master
negotiator (noun) someone who negotiates (confers with others in order to reach a settlement) Synonyms: negotiant, treater
nominator (noun) someone who proposes a candidate for appointment or election

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