There are 860 nine-letter words containing A, L, P and T, https://www.bestwordlist.com/c/a/4/9letterwordswithalpt.htm ACROPETAL ADAPTABLE ADOPTABLE AFTERCLAP ALIPHATIC ALLOPATHS ALLOPATHY ALLOPATRY ALLOTROPE ALLOTROPY ALLOTYPES ALLOTYPIC ALPARGATA ALPHABETS ALPHASORT ALPHATEST ALPINISTS ALTIGRAPH ALTIPLANO AMPHOLYTE AMPLITUDE ANALEPTIC ANAPLASTY ANCIPITAL ANTELOPES ANTIPAPAL ANTIPODAL ANTIPOLAR ANTIPOLES ANTISLEEP ANTITYPAL ANVILTOPS APERTURAL APETALIES APETALOUS APHOLATES APICULATE APLANATIC APLANETIC APLUSTRES APOLOGIST APOPLASTS APOSTILLE APOSTOLIC APPELLANT APPELLATE APPETIBLE APPLECART APPLETINI APPLICANT APPLICATE ARCTOPHIL ASHPLANTS ASPECTUAL ASPHALTED ASPHALTER ASPHALTIC ASPHALTUM ASTROPHEL ATEMPORAL AUTOPILOT AUTOREPLY BACKPLATE BACKSPLIT BALDPATED BALDPATES BALLPOINT BAPTISMAL BASEPLATE BASIPETAL BEDPLATES BEPLASTER BICIPITAL BIOPLASTS BITEPLATE BLACKSPOT BLACKTIPS BLACKTOPS BLASTOPOR BOOKPLATE CALIPHATE CALOTYPES CALTHROPS CALYPTERA CALYPTERS CALYPTRAS CAMPSTOOL CANTALOUP CAPABLEST CAPELLETS CAPITALLY CAPITELLA CAPITULAR CAPITULUM CAPRYLATE CAPSULATE CAPTOPRIL CATALEPSY CATAPHYLL CATAPLASM CATAPLEXY CATAPULTS CATCHPOLE CATCHPOLL CEPHALATE CHALKPITS CHAPLETED CHAPTERAL CHAPTRELS CHIPOLATA CISPLATIN CLAPTRAPS CLEOPATRA CLODPATED CLODPATES COMPACTLY COMPLAINT COMPLEATS COMPLIANT COMPTABLE CONEPATLS COPULATED COPULATES CRAPULENT CRYPTICAL CULPATORY CUPOLATED CYCLEPATH CYTOPLASM CYTOPLAST DEPILATED DEPILATES DEPILATOR DEPUTABLE DIPLOMATA DIPLOMATE DIPLOMATS DISPLANTS DOORPLATE DRAWPLATE DUPLICATE ECLAMPTIC ECTOPLASM EGGPLANTS ELEPHANTS EMPLASTER EMPLASTIC EMPLASTRA EMPTIABLE EMPTIONAL ENDPLATES EPAULETED EPAULETTE EPEOLATRY EPHIALTES EPHORALTY EPIBLASTS EPILATING EPILATION EPILATORS EPIPHYTAL EPITAXIAL EPITHELIA EPULATION EUCALYPTI EUCALYPTS EUPLASTIC EUTRAPELY EXCULPATE EXOPLANET EXPELLANT EXPLANTED EXPLICATE FACEPLANT FACEPLATE FELDSPATH FISHPLATE FLAPPIEST FLAPTRACK FLATPACKS FLATPICKS FLIPCHART FLOPTICAL FOOTPLATE GALLIPOTS GANTELOPE GANTLOPES GLIDEPATH GOALPOSTS GRASSPLOT HALOPHYTE HAPLONTIC HAPLOTYPE HEELPLATE HELPMATES HEPATICAL HEPTAGLOT HOMOTYPAL HOSPITALE HOSPITALS HOTPLATES HOURPLATE HYPETHRAL HYPOBLAST IMPACTFUL IMPARTIAL IMPLANTED IMPLANTER IMPLATING IMPLICATE IMPUTABLE IMPUTABLY INCULPATE INTERLAPS INTERPLAY ISOPHOTAL JASPILITE KALIPHATE KALLITYPE KALOTYPES KALUMPITS KALYPTRAS KICKPLATE LAKEPORTS LAMPADIST LAMPLIGHT LAMPPOSTS LAMPSTAND LANTSKIPS LAPIDATED LAPIDATES LAPIDISTS LAPSTONES LAPSTRAKE LAPSTREAK LEADPLANT LEETSPEAK LIPARITES LIPOPLAST LIVETRAPS LOCOPLANT LYMPHATIC MALAPERTS MALTIPOOS MATCHPLAY METAPELET METAPLASM MISPLANTS MOSSPLANT MULTIPACK MULTIPAGE MULTIPARA MULTIPART MULTIPATH NAMEPLATE NAPHTHOLS NAPHTHYLS NEOPLASTY NEPHALIST NONPLIANT NONPOSTAL NONSTAPLE NOPALITOS NOTAPHILY NUPTIALLY NYCTALOPE NYCTALOPS OCCIPITAL OCTAPLOID OLIPHANTS OMOPLATES OPERANTLY OPPILATED OPPILATES OPTICALLY OPTIMALLY OPTIONALS OTOPLASTY OUTGALLOP OUTLEAPED OUTPLACED OUTPLACER OUTPLACES OUTPLAYED OVERLEAPT OVERPLANT OVERPLAST PACKCLOTH PACTIONAL PAILLETTE PAINTABLE PAINTBALL PAINTERLY PALAESTRA PALAFITTE PALATABLE PALATABLY PALATALLY PALATINES PALEOLITH PALESTRAE PALESTRAL PALESTRAS PALLASITE PALLETING PALLETISE PALLETIZE PALLETTES PALLIATED PALLIATES PALLIATOR PALLIDEST PALLIDITY PALMATELY PALMATION PALMETTES PALMETTOS PALMISTER PALMISTRY PALMITATE PALMITINS PALMPRINT PALPATING PALPATION PALPATORS PALPATORY PALPITANT PALPITATE PALSTAFFS PALSTAVES PALTERERS PALTERING PALTRIEST PALUSTRAL PAMPHLETS PANATELAS PANATELLA PANELISTS PANELLIST PANETELAS PANETELLA PANTABLES PANTALEON PANTALETS PANTALONE PANTALONS PANTALOON PANTHENOL PANTILING PANTINGLY PANTOFFLE PANTOFLES PANTOUFLE PAPALISTS PAPILLATE PAPILLOTE PARABLAST PARACLETE PARALYTIC PARDALOTE PARIETALS PARLEMENT PARTIALLY PARTICLES PASTALIKE PASTELIKE PASTELIST PASTILLES PASTORALE PASTORALI PASTORALS PATCHABLE PATCHOULI PATCHOULY PATELLATE PATHOLOGY PATIENTLY PATRILINY PATROLLED PATROLLER PATROLMAN PATROLMEN PATROLOGY PEARLIEST PEARLITES PEARLITIC PEARLWORT PEATLANDS PECCANTLY PECTINALS PECTINEAL PECTORALS PECULATED PECULATES PECULATOR PEDALBOAT PEDESTALS PELTATELY PELTATION PENALTIES PENDANTLY PENDULATE PENNATULA PENTACLES PENTALOGY PENTALPHA PENTANGLE PENTANOLS PENTATHLA PENULTIMA PEPTALKED PERCENTAL PERCOLATE PERIBLAST PERINATAL PERIPLAST PERPETUAL PERTUSSAL PETAFLOPS PETALISMS PETALLIKE PETALODIC PETECHIAL PETILLANT PETIOLATE PETROLAGE PETROSALS PETULANCE PETULANCY PHACOLITE PHACOLITH PHALLISTS PHENOLATE PHILAMOTS PHILATELY PHILISTIA PHILOMATH PHLYCTENA PHOTOCALL PHOTOPLAY PHTHALATE PHTHALEIN PHTHALINS PHYLACTIC PIANOLIST PICTORIAL PICTURALS PIEPLANTS PIGMENTAL PIGTAILED PILASTERS PILLARIST PILOTAGES PINNATELY PINNULATE PINTABLES PINTAILED PIQUANTLY PIRATICAL PISTILLAR PITHBALLS PIVOTABLE PIVOTALLY PIXELATED PIXELATES PIXELLATE PIXILATED PIXILATES PIXILLATE PLACATERS PLACATING PLACATION PLACATIVE PLACATORY PLACCATES PLACEMATS PLACEMENT PLACENTAE PLACENTAL PLACENTAS PLACIDEST PLACIDITY PLACITORY PLAGUIEST PLAINANTS PLAINTEXT PLAINTFUL PLAINTIFF PLAINTIVE PLAISTERS PLAITINGS PLANARITY PLANATION PLANCHETS PLANETARY PLANETOID PLANKTERS PLANKTONS PLANTABLE PLANTAGES PLANTAINS PLANTINGS PLANTLESS PLANTLETS PLANTLIKE PLANTLING PLANTSMAN PLANTSMEN PLANTULES PLANULATE PLANXTIES PLAQUETTE PLASHIEST PLASMATIC PLASTERED PLASTERER PLASTICKY PLASTICLY PLASTIQUE PLASTISOL PLASTRONS PLASTRUMS PLATANNAS PLATBANDS PLATEASMS PLATEAUED PLATEFULS PLATELESS PLATELETS PLATELIKE PLATEMARK PLATESFUL PLATFORMS PLATINISE PLATINIZE PLATINOID PLATINOUS PLATINUMS PLATITUDE PLATONICS PLATONISM PLATOONED PLATTINGS PLATYFISH PLATYSMAS PLAUSTRAL PLAYACTED PLAYACTOR PLAYDATES PLAYLISTS PLAYMATES PLAYSUITS PLAYTHING PLAYTIMES PLEATHERS PLEATINGS PLEATLESS PLEIOTAXY PLEONASTE PLEONASTS PLETHORAS PLICATELY PLICATING PLICATION PLICATURE PLOTTAGES PLOWSTAFF PLOWTAILS PLUMBATES PLUMULATE PLURALIST PLURALITY PLUTOCRAT PLUTONIAN POETICALS POINTABLE POLESTARS POLIANITE POLITICAL POLLENATE POLLINATE POLLTAKER POLLUTANT POLYANTHA POLYANTHI POLYMASTY POLYMATHS POLYMATHY POLYTONAL POLYWATER PONYTAILS POPLITEAL POPULATED POPULATES PORTABLES PORTATILE PORTLANDS PORTLASTS PORTOLANI PORTOLANO PORTOLANS PORTRAYAL PORTULACA PORTULANS POSTAXIAL POSTCAVAL POSTFAULT POSTFIXAL POSTNASAL POSTNATAL POSTTRIAL POSTULANT POSTULATA POSTULATE POSTVIRAL POTENTIAL POTLACHES POTWALLER PRACTICAL PRACTOLOL PRAELECTS PRATFALLS PRATINGLY PRATTLERS PRATTLING PREADULTS PREALLOTS PREALTERS PREBATTLE PREBUTTAL PRECOITAL PRELATESS PRELATIAL PRELATIES PRELATION PRELATISE PRELATISH PRELATISM PRELATIST PRELATIZE PRELATURE PRELOCATE PRENATALS PREPUTIAL PRERECTAL PRETORIAL PRETRAVEL PRETRIALS PREVALENT PRIMALITY PRIMATALS PRIMATIAL PRIMITIAL PRINTABLE PRIVATELY PROLACTIN PROLATELY PROLATING PROLATION PROLATIVE PROLETARY PROMETALS PROTHALLI PROTOZOAL PSALMISTS PSALTERIA PSALTRESS PSALTRIES PTERYGIAL PTYALISED PTYALISES PTYALISMS PTYALIZED PTYALIZES PUFTALOON PULLULATE PULMONATE PULSATILE PULSATING PULSATION PULSATIVE PULSATORS PULSATORY PULSEBEAT PULVINATE PUPILLATE PUSTULANT PUSTULATE PYRITICAL PYROCLAST PYROLATER PYROLATRY RAMPANTLY RANTIPOLE RAPTORIAL RATAPLANS REIMPLANT REPELLANT REPLANTED REPLASTER REPLATING REPLICANT REPLICATE REPTILIAN REPUTABLE REPUTABLY ROTAPLANE SAILPASTS SALLYPORT SALTPETER SALTPETRE SAPIENTLY SAPROLITE SCAPOLITE SCEPTICAL SCOPULATE SEALPOINT SELLOTAPE SEPTLEVAS SHARPTAIL SHOPTALKS SKEPTICAL SLAPSHOTS SLAPSTICK SOLEPLATE SPAETZLES SPANGLETS SPARKLETS SPARTICLE SPATFALLS SPATIALLY SPATLESEN SPATLESES SPATULATE SPECIALTY SPECTACLE SPECULATE SPICULATE SPINULATE SPIRALIST SPIRALITY SPIRITUAL SPITBALLS SPLATCHED SPLATCHES SPLATTERS SPLATTING SPLAYFEET SPLAYFOOT SPOLIATED SPOLIATES SPOLIATOR SPORTABLE SPORULATE SPOTTABLE SPRATTLED SPRATTLES SPRIGTAIL SPRITSAIL STAMPLESS STAPEDIAL STAPELIAS STAPLINGS STIPULARY STIPULATE STOOPBALL STOPPABLE STRAPLESS STRAPLIKE STRAPLINE STYPTICAL SULPHATED SULPHATES SULPHATIC SUPERSALT SUPPLANTS SUPPLIANT SUPPLICAT SYMPETALY SYMPLASTS TABLETOPS TAILLAMPS TAILPIECE TAILPIPED TAILPIPES TAILPLANE TAILSPINS TALAPOINS TALBOTYPE TALLYSHOP TAPACOLOS TAPACULOS TAPELINES TAPLASHES TARPAULIN TAXIPLANE TEACUPFUL TELEGRAPH TELEPATHS TELEPATHY TELEPLAYS TELOPHASE TEMPLATES TEMPORALS TEMPTABLE TEPHILLAH TERAFLOPS TETRAPLAS THRAPPLED THRAPPLES TIECLASPS TINPLATED TINPLATES TOEPLATES TONOPLAST TOPALGIAS TOPICALLY TOPONYMAL TOWPLANES TRAGELAPH TRAMPLERS TRAMPLING TRAMPOLIN TRAPBALLS TRAPEZIAL TRAPFALLS TRAPLINES TRIPLANES TRIUMPHAL TROOPIALS TROPAEOLA TROPICALS TROUPIALS TULIPANTS TWALPENNY TYPHOIDAL TYPICALLY ULTRAPOSH ULTRAPURE UNADEPTLY UNPARTIAL UNPLAITED UNPLANTED UNPLEATED UNPOTABLE UNTYPABLE UNTYPICAL UPDATABLE UPROOTALS UPTALKING VALPROATE VAMPLATES VAPULATED VAPULATES WAXPLANTS WHIPSTALL WHIPTAILS ZAPOTILLA ZELOTYPIA ZOOPLASTY