There are 601 nine-letter words containing A, E, I and 2R, https://www.bestwordlist.com/c/a/5/9letterwordswithaeirr.htm
ABRIDGERS ACQUIRERS ACROSPIRE ACROTERIA ACTORLIER AEROTRAIN AFFIRMERS
AIRDROMES AIRFRAMES AIRLINERS AIRPOWERS AIRPROXES AIRSCREWS AIRSTREAM
AIRSTRIKE AMBERGRIS APHORISER APHORIZER APPRAISER APPRISERS APPRIZERS
ARBITRAGE ARBITRATE ARBITRESS ARBORISED ARBORISES ARBORIZED ARBORIZES
ARCHAISER ARCHAIZER ARCHERIES ARGUFIERS ARGYRITES ARMIGERAL ARMIGEROS
ARMOURIES ARPILLERA ARRAIGNED ARRAIGNER ARREEDING ARRESTING ARRESTIVE
ARRIVANCE ARRIVISME ARRIVISTE ARROWIEST ARROWLIKE ARTERIALS ARTERIOLE
ARTERITIS ARTIFICER ARTILLERY ASPERSOIR ASTRINGER BAIRNLIER BARBARISE
BARBARIZE BARBERING BARBWIRES BARGAINER BARRELING BARRICADE BARRICOES
BARRIERED BARRIQUES BARRISTER BARTERING BERRIGANS BIGARREAU BIOMARKER
BIRRETTAS BIRTHRATE BISERRATE BIZARRELY BORRELIAS BRAILLERS BRAMBLIER
BRANCHIER BRASSERIE BRASSIERE BRAVERIES BREATHIER BRIARIEST BRIGADIER
BURSARIES CABDRIVER CANKERIER CARABINER CARBINEER CARBINIER CARBURISE
CARBURIZE CAREERING CAREERISM CAREERIST CAREGIVER CARNIVORE CARRIAGES
CARRIOLES CARROTIER CARTRIDGE CARVERIES CASHIERER CATBRIERS CEDARBIRD
CERBERIAN CERCARIAE CERCARIAL CERCARIAN CERCARIAS CERTAINER CHARRIEST
CINERARIA CINERATOR CLARIFIER CORIANDER CORRASIVE CRACKLIER CRATERING
CRIBELLAR CRITERIAL CROREPATI CURARINES CURARISED CURARISES CURARIZED
CURARIZES CURTAILER DARRAIGNE DARRAINED DARRAINES DEBARRING DERAILERS
DESPAIRER DIARRHEAL DIARRHEAS DIARRHEIC DIARRHOEA DISARMERS DISBARRED
DISCARDER DISGRACER DISREGARD DISREPAIR DRAPERIED DRAPERIES DREARIEST
DREARINGS DRERIHEAD EARRINGED EARTHLIER EARTHRISE EMBARRING ENGRAINER
ENTRAINER EPIRRHEMA ERRANCIES ERRATICAL ERYTHRINA FAIRGOERS FARADISER
FARADIZER FARMERIES FEDERARIE FERRIAGES FIREARMED FIREBOARD FIREBRAND
FIREBRATS FIREBREAK FIREDRAKE FIREGUARD FIREMARKS FIRETRAPS FIREWATER
FIRMWARES FLAVORIER FOREBRAIN FORESTAIR FORFAIRED FORFAITER FRAICHEUR
FRANSERIA FRATCHIER FRATERIES GARBAGIER GARGARISE GARGARIZE GARNERING
GARNISHER GARNITURE GARRIGUES GARTERING GERARDIAS GERIATRIC GRADELIER
GRAMARIES GRANARIES GRANDSIRE GRANIVORE GRAPERIES GRATIFIER GREGARIAN
GREGARINE GRENADIER GRIMACERS GUERRILLA HAGRIDERS HAIRDRIER HAIRDRYER
HARBINGER HARDLINER HARDWIRED HARDWIRES HERBARIAL HERBARIAN HERBARIES
HERBARIUM HERBIVORA HIERARCHS HIERARCHY HIEROCRAT HIEROGRAM HORSEHAIR
HURRICANE HYPERARID IMMATURER IMPAIRERS IMPARTERS IMPERATOR IMPRESARI
INCREASER INERRABLE INERRABLY INERRANCY INFRAREDS INGRAINER INNERWEAR
INSNARERS INSTARRED INTERARCH INTERLARD INTERRACE INTERRAIL IRONWARES
IRRADIATE IRREALITY IRREDENTA IRREGULAR IRRELATED IRRIDENTA IRRIGABLE
IRRIGATED IRRIGATES IRRITABLE IRRITATED IRRITATES ITINERARY JARGONIER
JASPERIER JERRICANS KARABINER KNARRIEST KRAMERIAS LADDERIER LAIRDLIER
LATHERIER LIBERATOR LIBRAIRES LIBRAIRIE LIBRARIES LIPREADER LITERATOR
MANRIDERS MARGARINE MARGARITE MARINERAS MARINIERE MARMARISE MARMARIZE
MARRIAGES MARROWIER MARTYRIES MARTYRISE MARTYRIZE MARVERING MATTERIER
MERCURIAL MERICARPS MISREGARD MORALISER MORALIZER MORASSIER MORTARIER
MURRAINED NARRATIVE NATTERIER NUMERAIRE ORANGERIE ORATORIES ORATRICES
ORATRIXES ORDAINERS ORDINAIRE ORGANISER ORGANIZER OVERGRAIN OVERHAIRS
OVERTRAIN PAPERGIRL PARACRINE PAREGORIC PARRHESIA PARRICIDE PARRIDGES
PARROTIER PARTRIDGE PARURESIS PARURETIC PERICARPS PERIKARYA PERISARCS
PERITRACK PERRADIAL PERRADIUS PETRARIES PHRATRIES PIFFERARI PIFFERARO
POLARISER POLARIZER PORIFERAL PORIFERAN PRACTICER PRACTISER PREACHIER
PREARMING PRECARIAT PREORDAIN PREPARING PRETORIAL PRETORIAN PRETRAINS
PRETRIALS PREVAILER PRIMARIES PRIMAVERA PRIORATES PRIVATEER PROGERIAS
PUERPERIA QUAERITUR QUARRIERS QUARTIERS QUARTZIER QUAVERIER RABBITERS
RABBITIER RACKETIER RAFTERING RAGGEDIER RAGGERIES RAGPICKER RAGTIMERS
RAINMAKER RAINWATER RAINWEARS RAISINIER RANCHERIA RANCHERIE RANTERISM
RAPTURISE RAPTURIZE RAREFIERS RAREFYING RARERIPES RASTERING RASTERISE
RASTERIZE RATHERIPE RATHERISH RATHRIPES RATIFIERS RATTERIES RAUNCHIER
RAVELLIER RAVISHERS REACQUIRE REAFFIRMS REALISERS REALIZERS REARGUING
REARISING REBRACING REBURIALS RECAMIERS RECARRIED RECARRIES RECLAIMER
RECRATING RECRUITAL RECTORIAL REDBAITER REDRAWING REEARNING REFRAINED
REFRAINER REFRAMING REGAINERS REGARDING REGEARING REGIONARY REGISTRAR
REGRADING REGRATING REHEARING REITERANT REITERATE RELIQUARY REMAILERS
REMAINDER REMAINERS REMARKING REMARRIED REMARRIES REMIGRATE REORDAINS
REPAIRERS REPAIRING REPAIRMAN REPAIRMEN REPARKING REPRIEVAL REPRIMAND
REPRISALS RERACKING RERADIATE RERAILING RERAISING REREADING RESIDUARY
RESTRAINS RESTRAINT RETAILERS RETAILORS RETAINERS RETARDING RETEARING
RETIARIUS RETICULAR RETINULAR RETIRANTS RETRACING RETRAICTS RETRAINED
RETRAINEE RETRAITES RETRAITTS RETRATING RETRIEVAL REVARNISH REVIBRATE
REWARDING REWARMING REWEARING REWIRABLE RIBAUDRED RICEGRASS RICERCARE
RICERCARI RICERCARS RICERCATA RIGMAROLE RIGSDALER RIPRAPPED RIVALRIES
RIVERAINS RIVERBANK RIVERBOAT RIVERHEAD RIVERWALK RIVERWARD RIVERWAYS
RODGERSIA ROSMARINE ROTIFERAL ROTIFERAN RUBRICATE RURALISED RURALISES
RURALITES RURALIZED RURALIZES SATIRISER SATIRIZER SAVOURIER SCARIFIER
SCARRIEST SCRAGGIER SCRANNIER SCRAPPIER SCRAWLIER SCRAWNIER SCREAKIER
SEMIRURAL SERASKIER SERIGRAPH SERRANIDS SERRANOID SERRATING SERRATION
SHIKARRED SHIRRALEE SIDEARMER SOWARRIES SPARERIBS SPARKLIER SPARRIEST
SPARTERIE SPERMARIA SPIRASTER SPRAWLIER STARCHIER STARRIEST STARTLIER
STIRRABLE STRAINERS STRAPPIER STREAKIER STREAMIER STRIATURE SWARTHIER
TARNISHER TARRIANCE TARRINESS TARTARISE TARTARIZE TATTERIER TEARSTRIP
TERMITARY TERNARIES TERRACING TERRAPINS TERRARIUM THRASHIER THREADIER
THROATIER TIREMAKER TRACERIED TRACERIES TRAILERED TRAITRESS TRANSIRES
TRANSPIRE TRASHTRIE TRATTORIE TRAVERTIN TREACLIER TRIALWARE TRIERARCH
TRIHEDRAL TRILINEAR TRIQUETRA TRISERIAL TRITURATE TURBARIES UNCHARIER
UNCRAZIER UNDERHAIR UNHAIRERS UNHARDIER UNHARRIED UNMARRIED UNMARRIES
UNREADIER UNREPAIRS UNSCARIER UNWEARIER UPBRAIDER UPRAISERS UPREARING
URINARIES VAPORISER VAPORIZER VAPOURIER VARNISHER VERATRIAS VERATRINE
VERATRINS VERBARIAN VICARLIER VRAICKERS WARDERING WARREYING WATERBIRD
WIREDRAWN WIREDRAWS WIREFRAME WIREGRASS WIREHAIRS WREATHIER