There are 660 thirteen-letter words containing A, E, G and 2I, https://www.bestwordlist.com/c/a/5/13letterwordswithaegii.htm ABIOGENICALLY ACCESSORISING ACCESSORIZING ACQUIESCINGLY ADMINISTERING AEROBIOLOGIES AEROBIOLOGIST AERODIGESTIVE AFFRIGHTENING AGGIORNAMENTI AGGLUTINATIVE AGRICHEMICALS AGROBIOLOGIES AIRFREIGHTING ALLERGENICITY ALPHABETISING ALPHABETIZING AMPHIBOLOGIES ANESTHETISING ANESTHETIZING ANGIOGRAPHIES ANGIOPLASTIES ANIMADVERTING ANTIBOURGEOIS ANTICIGARETTE ANTIFOREIGNER ANTIGENICALLY ANTIGRAVITIES ANTIGUERRILLA ANTILITTERING ANTIRELIGIONS ANTIRELIGIOUS APOTHEOSISING APOTHEOSIZING ARCHIPELAGIAN ARGILLIFEROUS ARPEGGIATIONS ARTERIALISING ARTERIALIZING ASPERGILLOSIS ASPHETERISING ASPHETERIZING ASTRINGENCIES AUCTIONEERING BABINGTONITES BACTERIOLOGIC BENEFICIATING BIBLIOGRAPHER BIGNONIACEOUS BILLINGSGATES BIOECOLOGICAL BIOGEOGRAPHIC BOILERMAKINGS BOILERPLATING BOUGAINVILLEA BREADWINNINGS CABINETMAKING CALENDARISING CALENDARIZING CALLIGRAPHIES CANISTERISING CANISTERIZING CANTILEVERING CARCINOLOGIES CARDIOPLEGIAS CATHETERISING CATHETERIZING CERTIFICATING CHANGEABILITY CHARGEABILITY CHARIOTEERING CHILDBEARINGS CHIROGRAPHIES CLEISTOGAMIES CLIMATOLOGIES COLLEGIALISMS COLLIESHANGIE COMMISERATING CONCERTINAING CONFIGURATIVE CONJUGALITIES COSIGNATORIES CRANIOGNOMIES CREDENTIALING DAMAGEABILITY DEATTRIBUTING DECARBONISING DECARBONIZING DECARBURISING DECARBURIZING DECARTELISING DECARTELIZING DECASUALISING DECASUALIZING DECLASSIFYING DECORTICATING DECRASSIFYING DECREPITATING DEDRAMATISING DEDRAMATIZING DEDUPLICATING DEFEUDALISING DEFEUDALIZING DEFIBRINATING DEFORMALISING DEFORMALIZING DEGLACIATIONS DEGLAMORISING DEGLAMORIZING DEGLUTINATING DEGLUTINATION DEGRADABILITY DELEGITIMATED DELEGITIMATES DEMAGNETISING DEMAGNETIZING DEMIURGICALLY DEMOCRATISING DEMOCRATIZING DEMUTUALISING DEMUTUALIZING DEMYELINATING DENTILINGUALS DEPAUPERISING DEPAUPERIZING DERACIALISING DERACIALIZING DESACRALISING DESACRALIZING DESANCTIFYING DESEXUALISING DESEXUALIZING DESTABILISING DESTABILIZING DESTIGMATIZED DESTIGMATIZES DETERIORATING DETERMINATING DETRIBALISING DETRIBALIZING DIABETOLOGIST DIABOLOLOGIES DIAGEOTROPISM DIAMAGNETISMS DIGRESSIONARY DISAMBIGUATED DISAMBIGUATES DISASSEMBLING DISCANDERINGS DISCOGRAPHIES DISENCHAINING DISENCHANTING DISENTANGLING DISENTRAILING DISENTRAINING DISENTRANCING DISENTRAYLING DISGARRISONED DISGAVELLINGS DISGREGATIONS DISHEARTENING DISINTEGRABLE DISINTEGRATED DISINTEGRATES DISINTEGRATOR DISINVIGORATE DISORGANISERS DISORGANIZERS DISPLEASINGLY DISPLEASURING DISSEMINATING DITTOGRAPHIES DIVELLICATING DOMESTICATING EFFIGURATIONS EGOTISTICALLY EMARGINATIONS EMBLEMATISING EMBLEMATIZING EMIGRATIONIST ENCARNALISING ENCARNALIZING ENERGISATIONS ENERGIZATIONS ENFRANCHISING ENGARRISONING ENIGMATICALLY ENTERTAININGS EPIGRAMMATISE EPIGRAMMATISM EPIGRAMMATIST EPIGRAMMATIZE EQUIBALANCING EQUILIBRATING ESOPHAGITIDES ESOPHAGITISES ETHEREALISING ETHEREALIZING ETIOLOGICALLY EUTHANATISING EUTHANATIZING EVANGELIARIES EVANGELIARION EVANGELIARIUM EVANGELICISMS EVENTUALISING EVENTUALIZING EXCOGITATIONS EXCORTICATING EXOBIOLOGICAL EXPROPRIATING EXTERMINATING EXTERNALISING EXTERNALIZING EXTINGUISHANT FERRIMAGNETIC FIANCHETTOING FIBERGLASSING FIBREGLASSING FILMOGRAPHIES FOREORDAINING FRAGMENTISING FRAGMENTIZING GALLIMAUFRIES GAZILLIONAIRE GEITONOGAMIES GELATINATIONS GENEALOGISING GENEALOGIZING GENERALISSIMO GENERATIONISM GENICULATIONS GENITOURINARY GEODYNAMICIST GEOMETRICIANS GEOPOLITICIAN GERIATRICIANS GERMANISATION GERMANIZATION GERMINABILITY GERONTOPHILIA GESTICULATING GESTICULATION GESTICULATIVE GHETTOISATION GHETTOIZATION GIGANTOLOGIES GILLRAVITCHED GILLRAVITCHES GIMCRACKERIES GLAIKITNESSES GLOBULARITIES GLYCERINATING GONIOMETRICAL GOVERNABILITY GRADABILITIES GRAMINOLOGIES GRAMMATICISED GRAMMATICISES GRAMMATICIZED GRAMMATICIZES GRANDIOSITIES GRANODIORITES GRANULARITIES GRAPHITISABLE GRAPHITIZABLE GRAVIMETRICAL GREGARIANISMS GUANETHIDINES GUERRILLAISMS GUESSTIMATING GUTTURALITIES HAGIOGRAPHIES HAIRDRESSINGS HANGABILITIES HELIOGRAPHIES HELIOGRAPHING HEMAGGLUTININ HEXAMETRISING HEXAMETRIZING HIERARCHISING HIERARCHIZING HIEROGRAPHIES HISTAMINERGIC HYPERVIGILANT IATROGENICITY ICHNOGRAPHIES ICONOGRAPHIES IDEOGRAMMATIC IDEOGRAPHICAL IDEOLOGICALLY ILLEGITIMATED ILLEGITIMATES ILLOGICALNESS IMAGINARINESS IMAGINATIVELY IMPENETRATING IMPERIALISING IMPERIALIZING IMPERSONATING IMPREGNATIONS INCARCERATING INCOGITANCIES INCOGNISANCES INCOGNIZANCES INDEFATIGABLE INDEFATIGABLY INEGALITARIAN INELABORATING INGEMINATIONS INGENERATIONS INGRAINEDNESS INTEGRABILITY INTEGRALITIES INTERAGENCIES INTERCALATING INTERCHAINING INTERCHANGING INTERDIGITATE INTERGALACTIC INTERGLACIALS INTERGRADIENT INTERGRAFTING INTERLAYERING INTERMARGINAL INTERMARRIAGE INTERMARRYING INTERNALISING INTERNALIZING INTERPLANTING INTERPLEADING INTERPOLATING INTERREGIONAL INTERRELATING INTERROGATING INTERROGATION INTERROGATIVE INTERTANGLING INTERTILLAGES INTRANSIGEANT INTRANSIGENCE INTRANSIGENCY INTRANSIGENTS INVESTIGATING INVESTIGATION INVESTIGATIVE INVESTIGATORS INVESTIGATORY IRREFRANGIBLE IRREFRANGIBLY KITEBOARDINGS LEGALISATIONS LEGALIZATIONS LEGISLATIVELY LEGISLATORIAL LEGITIMATIONS LEGITIMATISED LEGITIMATISES LEGITIMATIZED LEGITIMATIZES LEXICOGRAPHIC LEXICOLOGICAL LEXIGRAPHICAL LITHOGRAPHIES LIVESTREAMING LONGANIMITIES MAGISTERIALLY MAGNANIMITIES MAGNETISATION MAGNETIZATION MAGNIFICENCES MAGNIFICENTLY MAINSTREAMING MAINSTREETING MAINTENANCING MALARIOLOGIES MANAGEABILITY MANAGERIALISM MANAGERIALIST MARGINALITIES MARLINGSPIKES MASTERMINDING MATERIALISING MATERIALIZING MATHEMATISING MATHEMATIZING MEDICAMENTING MEMORIALISING MEMORIALIZING MERCHANDISING MERCHANDIZING METACOGNITION METASTASISING METASTASIZING METATHESISING METATHESIZING MICROGRANITES MICROGRAPHIES MIMEOGRAPHING MINERALOGICAL MINERALOGISED MINERALOGISES MINERALOGISTS MINERALOGIZED MINERALOGIZES MISADDRESSING MISALIGNMENTS MISASSEMBLING MISCEGENATING MISCEGENATION MISCHANNELING MISENTREATING MISESTIMATING MISEVALUATING MISPERSUADING MONOAMINERGIC MORIGERATIONS MULTIAGENCIES MULTIDIGITATE MULTIGRAVIDAE MULTIREGIONAL NECESSITATING NEGOTIABILITY NEGOTIATRICES NEGOTIATRIXES NEOLOGISTICAL NEOPAGANISING NEOPAGANIZING NEUROIMAGINGS NIGGARDLINESS NITROGELATINE NITROGELATINS NONFIGURATIVE NONINCREASING OBJECTIVATING OCTINGENARIES OLIGOSPERMIAS OPPIGNERATING OPPIGNERATION ORIENTALISING ORIENTALIZING ORIGINALITIES ORIGINATIVELY OVERACHIEVING OVERDEVIATING OVERDIAGNOSIS OVERFATIGUING OVERINFLATING OVERLAVISHING OVERSTRAINING PALEOBIOLOGIC PALINGENESIAS PALINGENESIES PALINGENESIST PARALLELISING PARALLELIZING PARAMETRISING PARAMETRIZING PARLIAMENTING PATHOGENICITY PATRILINEAGES PECULIARISING PECULIARIZING PEDANTICISING PEDANTICIZING PENINSULATING PEREGRINATING PEREGRINATION PERICLITATING PERIGASTRITIS PERSONALISING PERSONALIZING PHARYNGITIDES PHARYNGITISES PHILANDERINGS PHLOGISTICATE PICTOGRAPHIES PIEZOMAGNETIC PIGMENTATIONS PLANIGRAPHIES PLEBEIANISING PLEBEIANIZING PREACHIFYINGS PREAPPOINTING PREBIOLOGICAL PRECAUTIONING PRECIPITATING PREDOMINATING PREFIGURATING PREFIGURATION PREFIGURATIVE PREFINANCINGS PREGANGLIONIC PREINSTALLING PREJUDICATING PREMEDICATING PREMEDITATING PREMIGRATIONS PRENOMINATING PREQUALIFYING PRESIGNALLING PRESTIGIATORS PREVARICATING PRIMATOLOGIES PRIMIGRAVIDAE PRIMOGENITARY PRIVATEERINGS PRODIGALITIES PROGENITORIAL PROLIFERATING PSALIGRAPHIES PSEUDIMAGINES QUADRIGEMINAL QUADRIPLEGIAS QUADRIPLEGICS QUADRISECTING RADIOGRAPHIES RADIOLABELING RANGEFINDINGS REACCLIMATING REACCREDITING REACQUAINTING READVERTISING READVERTIZING REATTRIBUTING REAUTHORISING REAUTHORIZING RECALIBRATING RECIPROCATING RECIRCULATING RECLASSIFYING RECRIMINATING RECULTIVATING REDUPLICATING REEMPHASISING REEMPHASIZING REFOCILLATING REFRIGERATING REFRIGERATION REFRIGERATIVE REGIMENTATION REGIONALISING REGIONALISTIC REGIONALIZING REGISTRARSHIP REGISTRATIONS REGURGITATING REGURGITATION REHARMONIZING REINCARNATING REINNERVATING REINOCULATING REINTEGRATING REINTEGRATION REINTEGRATIVE REINVESTIGATE REINVIGORATED REINVIGORATES REINVIGORATOR RELIGIONARIES RELUBRICATING RENEGOTIATING RENEGOTIATION RENORMALISING RENORMALIZING REORIENTATING REPAGINATIONS REPRIVATISING REPRIVATIZING RESOCIALISING RESOCIALIZING RESTABILISING RESTABILIZING RESTIMULATING RESUSCITATING REVACCINATING REVENDICATING REVICTUALLING REVINDICATING REVISUALIZING RUGGEDISATION RUGGEDIZATION SALPINGITISES SAPROGENICITY SATELLITISING SATELLITIZING SEISMOGRAPHIC SEISMOLOGICAL SEMASIOLOGIES SEMASIOLOGIST SEMEIOLOGICAL SERODIAGNOSIS SHAPESHIFTING SIALOGRAPHIES SIGNIFICANCES SIGNIFICATIVE SINGULARITIES SIPHONOGAMIES SLIPSTREAMING SPAGHETTIFIED SPAGHETTIFIES SPAGHETTILIKE SPECIFICATING SPIROGRAPHIES STAIRSTEPPING STICKYBEAKING STIPENDIATING STRAIGHTENING STREAMLININGS SUPERPRAISING SYRINGOMYELIA SYSTEMATISING SYSTEMATIZING TANGENTIALITY TANGIBILITIES TAXIDERMISING TAXIDERMIZING TELEPATHISING TELEPATHIZING TEMPORALISING TEMPORALIZING TENOVAGINITIS THEATRICISING THEATRICIZING TRAGICOMEDIES TRANSPIERCING UNDERDRAINING UNDERPAINTING UNDERPRAISING UNDEVIATINGLY UNDISGUISABLE UNFAILINGNESS UNFEUDALISING UNFEUDALIZING UNIDEOLOGICAL UNIMAGINATIVE UNMECHANISING UNMECHANIZING UNMITIGATEDLY UNSTIGMATISED UNSTIGMATIZED USTILAGINEOUS VAGINECTOMIES VASECTOMISING VASECTOMIZING VEGETARIANISM VERBIGERATING VERBIGERATION VERMICULATING VIDEOGRAPHIES VILLEGGIATURA VITILITIGATED VITILITIGATES WELLINGTONIAS WHIGMALEERIES WHITEWASHINGS WILLIEWAUGHTS WINDBAGGERIES XENODIAGNOSIS ZINCOGRAPHIES