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