There are 702 nine-letter words containing A, C, I, N and O, https://www.bestwordlist.com/c/a/5/9letterwordswithacino.htm
ABDUCTION ABIOGENIC ABJECTION ACANTHOID ACCENSION ACCESSION ACCLOYING
ACCORDING ACCORDION ACCOSTING ACCRETION ACINIFORM ACKNOWING ACONITINE
ACONITUMS ACROGENIC ACROLEINS ACRONICAL ACRONYMIC ACTINOIDS ACTINOPOD
ACTIONERS ACTIONING ACTIONIST ACTUATION ACUMINOUS ACUPOINTS ACYLATION
ADDICTION ADDUCTION ADVECTION AERONOMIC AFFECTION AFFORCING AGNOSTICS
AGONISTIC AGRONOMIC AITCHBONE ALBINOTIC ALEURONIC ALLANTOIC ALLOGENIC
AMMONIACS AMMONICAL AMMONITIC ANABIOTIC ANAEROBIC ANAPHORIC ANCHORING
ANCHORITE ANCHOVIES ANDROECIA ANECDOTIC ANHEDONIC ANICONISM ANICONIST
ANKYLOTIC ANORECTIC ANORETICS ANOREXICS ANOSMATIC ANOXAEMIC ANTECHOIR
ANTHOZOIC ANTHROPIC ANTICHLOR ANTICODON ANTIKNOCK ANTIMACHO ANTIMONIC
ANTINOMIC ANTISHOCK ANTITOXIC ANTONYMIC ARACHNOID ARCCOSINE ARCHONTIC
ARCUATION ARECOLINE ARMONICAS ASCENSION ASCOGONIA ATONICITY AUCTIONED
AUTOCRINE AUTOGENIC AUTONOMIC AUXOTONIC AVOCATION AVOIDANCE AVOPARCIN
AVOUCHING BABYCCINO BABYCINOS BALCONIED BALCONIES BALECTION BANDICOOT
BASILICON BEACONING BICONCAVE BICORNATE BINOCULAR BLANCOING BONIFACES
BOTANICAL BOTANICAS BRACONIDS BROACHING BROCADING BROMANTIC BRONCHIAL
CABOBBING CACOGENIC CAIRNGORM CALIFONTS CAMPESINO CANCROIDS CANNELONI
CANNONIER CANNONING CANOEINGS CANOEISTS CANONICAL CANONISED CANONISER
CANONISES CANONISTS CANONIZED CANONIZER CANONIZES CANONRIES CANOPYING
CANTICOED CANTICOYS CANTONING CANTONISE CANTONIZE CANTORIAL CANYONING
CAPARISON CAPITANOS CAPONIERE CAPONIERS CAPONISED CAPONISES CAPONIZED
CAPONIZES CAPOTTING CAPTIONED CARANGOID CARBAMINO CARBANION CARBINOLS
CARBONISE CARBONIUM CARBONIZE CARCINOID CARCINOMA CARILLONS CARNAROLI
CARNATION CARNIVORA CARNIVORE CARNIVORY CARNOSITY CARNOTITE CAROLINGS
CAROLLING CAROUSING CARROMING CARROTINS CARTONING CARYOTINS CASEATION
CASHPOINT CASSATION CATATONIA CATATONIC CATENOIDS CATHINONE CAUDATION
CAUSATION CAUTIONED CAUTIONER CAUTIONRY CAVICORNS CAVORTING CENSORIAL
CENSORIAN CESSATION CHACONINE CHAINSHOT CHAINWORK CHALAZION CHAMPIONS
CHANCROID CHARMONIA CHELATION CHELONIAN CHILIAGON CHINAROOT CHITOSANS
CHROMATIN CHRONAXIE CHRONICAL CHTHONIAN CIBATIONS CICLATONS CICLATOUN
CILANTROS CILIATION CINCHONAS CINERATOR CINNAMONS CINNAMONY CITATIONS
CLAMORING CLARIONED CLARIONET CLAVATION CLAVICORN CLAYTONIA CLINOAXES
CLINOAXIS CLINOSTAT CLINTONIA CLOACINAL CLOZAPINE COACHINGS COACHLINE
COACTIONS COALISING COALITION COALIZING COALMINER COALMINES COASTINGS
COASTLINE COAXINGLY COBALAMIN COBALTINE COCAINISE COCAINISM COCAINIST
COCAINIZE COCAPTAIN COCCIDIAN COCCYGIAN COCHINEAL COCINERAS COCKSWAIN
CODOMAINS COECILIAN COFINANCE COGNATION COGNISANT COGNIZANT COGNOMINA
COHEADING COINMATES COINTREAU COITIONAL COLEADING COLLAGING COLLARING
COLLATING COLLATION COLLEGIAN COLLINEAR COLLINSIA COLONIALS COMBATING
COMBINATE COMEDIANS COMMINATE COMPANIED COMPANIES COMPANING COMPANION
COMPARING COMPENDIA COMPLAINS COMPLAINT COMPLIANT CONACRING CONATIONS
CONCAVING CONCAVITY CONCILIAR CONFIDANT CONGENIAL CONICALLY CONNATION
CONNUBIAL CONQUIANS CONSORTIA CONSTRAIN CONTADINA CONTADINE CONTADINI
CONTADINO CONTAGION CONTAGIUM CONTAINED CONTAINER CONTINUAL CONTRAILS
CONTRALTI CONURBIAS CONVIVIAL COORDINAL COPATAINE CORALLINE CORAMINES
CORDWAINS CORIANDER CORNBRAID CORNELIAN CORNICULA CORRADING CORRASION
COTTAGING COUMARINS COUNTIANS COUSINAGE COVARIANT COVARYING COWARDING
COXSWAINS CRAYONING CRAYONIST CREATIONS CREMATION CRENATION CREOLIANS
CRINOIDAL CROAKINGS CROISSANT CROTALINE CUPOLAING CURATIONS CURTATION
CURVATION CUSTODIAN CYCLOPIAN CYTOPENIA DAYCATION DEACONING DEMONIACS
DEMONICAL DIACHRONY DIACHYLON DIACODION DIACONATE DIANOETIC DIAPHONIC
DICHONDRA DICTATION DICTIONAL DINOCERAS DIOCESANS DIONYSIAC DISANCHOR
DOCTRINAL DOMINANCE DOMINANCY DOMINICAL DRACONIAN DRACONISM DRACONTIC
ECOTARIAN EDUCATION EGOMANIAC EMICATION ENACTIONS ENCHORIAL ENCOMIAST
ENDOGAMIC ESCRIBANO EVOCATING EVOCATION EXACTIONS EXCAMBION FACTIONAL
FACTORING FALCATION FALCHIONS FALCONINE FALCONOID FAUCHIONS FAULCHION
FICTIONAL FLORICANE FORECABIN FORMICANT FORNICATE FRACTIONS FRANCOLIN
FURCATION GADOLINIC GALOCHING GASCONISM GASOLINIC GAYCATION GENOCIDAL
GEOMANTIC GLYCATION GNATHONIC GNOSTICAL GYNAECOID HALCYONIC HALOCLINE
HALOGENIC HAPLONTIC HARMONICA HARMONICS HAVOCKING HAYCATION HELICONIA
HEMOCONIA HOACTZINS HOATCHING HOLANDRIC HOLOCAINE HOOLICANS HURRICANO
HYPOMANIC ICONOSTAS IGNORANCE IMPACTION INACTIONS INCAUTION INCHOATED
INCHOATES INCOGNITA INCOMPACT INCUBATOR INDICATOR INFRACTOR INOCULANT
INOCULATE INORGANIC INSOMNIAC INTONACOS INVIOLACY INVOCABLE INVOCATED
INVOCATES INVOCATOR INVOLUCRA IONICALLY IRONCLADS ISOCLINAL ISOCYANIC
ISOOCTANE ISOPYCNAL JACTATION JAPONICAS JOUISANCE LACONICAL LACONISMS
LACTATION LANCIFORM LAODICEAN LATROCINY LATTICINO LICTORIAN LIDOCAINE
LOCATIONS LOGICIANS LONICERAS LUCTATION MACARONIC MACARONIS MACCARONI
MACEDOINE MACINTOSH MACROBIAN MACTATION MAGNIFICO MANDIOCAS MANDIOCCA
MANICOTTI MANTICORA MANTICORE MARCONIED MAROCAINS MEGATONIC MELANOTIC
MELOMANIC METHANOIC MICROBIAN MICROLOAN MINACIOUS MOCASSINS MOCCASINS
MONACHISM MONACHIST MONACIDIC MONACTINE MONADICAL MONARCHIC MONASTICS
MONATOMIC MONAXONIC MONOACIDS MONOBASIC MONODICAL MONOGAMIC MORTICIAN
MYOMANTIC NARCOTICS NARCOTINE NARCOTISE NARCOTISM NARCOTIST NARCOTIZE
NARICORNS NEGOCIANT NICOTIANA NICOTIANS NICTATION NOCTILUCA NOCTURIAS
NONACIDIC NONACTING NONACTION NONACTIVE NONADDICT NONATOMIC NONCAKING
NONCOITAL NONFISCAL NONIMPACT NONRACIAL NONRACISM NONSOCIAL NONSTATIC
NONTRAGIC NOSTALGIC NOVICIATE NOVOCAINE OBCONICAL OBEISANCE OBSTINACY
OCCASIONS OCEANARIA OCEANIDES OCEANSIDE OCEANVIEW OCTENNIAL OCTONARII
OENANTHIC OFFICIANT OFFICINAL OLFACTING OLFACTION OMITTANCE OMNIARCHS
ONANISTIC ONOMASTIC ONTICALLY OOLICHANS OPTICIANS ORDINANCE ORGANICAL
OSCITANCE OSCITANCY OUTACTING OUTFACING OUTPACING OUTRACING OXACILLIN
PACATIONS PACHINKOS PACTIONAL PACTIONED PANCHIONS PANCOSMIC PANOISTIC
PANORAMIC PANSOPHIC PANTROPIC PANZOOTIC PARANOEIC PARANOIAC PARANOICS
PARATONIC PARCIMONY PAROCHINE PAROCHINS PARONYMIC PENTANOIC PHARAONIC
PICAROONS PICKAROON PINACEOUS PINACOIDS PLACATION PLATONICS PLICATION
POACHINGS POCHAYING POIGNANCE POIGNANCY POINCIANA POLICEMAN PONTIANAC
POPINACKS PORCELAIN PROACTION PROCAINES PROLACTIN PROPANOIC PROSCENIA
PTOMAINIC RACEGOING RACIATION RADIONICS RAINCOATS REACTIONS RECAPTION
RECAUTION RECOALING RECOATING RECOINAGE REDACTION RHAPONTIC RHONCHIAL
ROMANCING ROMANTICS RUCTATION SALPICONS SANCTIONS SANTONICA SAUCISSON
SCALATION SCALLIONS SCANSIONS SCAZONTIC SCENARIOS SCHIAVONE SCIAENOID
SCIOMANCY SCUTATION SECTIONAL SICILIANO SIMONIACS SOCIATION SONANCIES
SONICALLY SONICATED SONICATES SONICATOR SPONDAICS STACATION STANCHION
STENOPAIC STRATONIC SUBACTION SUCTIONAL SUCTORIAN SULCATION SYNODICAL
TACHYONIC TACONITES TANOREXIC TAXONOMIC TENACIOUS THRASONIC TOCCATINA
TONALITIC TONICALLY TOXICANTS TRACTIONS TRANSONIC TRICLOSAN UNCANONIC
UNCOATING UNCORDIAL UNIVOCALS UNLOGICAL USUCAPION VACATIONS VACUATION
VAGOTONIC VASOTOCIN VERONICAS VINACEOUS VOCALIONS VOCATIONS VOIDANCES
VOLCANIAN VOLCANICS VOLCANISE VOLCANISM VOLCANIST VOLCANIZE WAINSCOTS
ZIRCONIAS ZOOMANTIC