There are 592 thirteen-letter words containing A, H, P, S and T, https://www.bestwordlist.com/c/a/5/13letterwordswithahpst.htm ACHROMATOPSIA ADIAPHORISTIC AETHRIOSCOPES ALLELOPATHIES ALPHABETISERS ALPHABETISING ALPHABETIZERS AMPHIBLASTULA AMPHICTYONIES AMPHIGASTRIUM AMPHIPROSTYLE AMPHISTOMATAL AMPHISTOMATIC AMPHITHEATERS AMPHITHEATRES AMPHITRICHOUS ANALPHABETICS ANALPHABETISM ANTHROPOSOPHY ANTIPHONARIES ANTIPSYCHOTIC ANTISTROPHONS AORTOGRAPHIES APHANIPTEROUS APOCHROMATISM APOSTROPHISED APOSTROPHISES APOSTROPHIZED APOSTROPHIZES APOSTROPHUSES APOTHEGMATISE APOTHEGMATIST APOTHEOSISING APOTHEOSIZING ARCTOPHILISTS ARTHROPATHIES ARTHROSCOPIES ARTHROSPOROUS ASPHETERISING ASPHETERIZING ASPHYXIATIONS ASSISTANTSHIP ASSOCIATESHIP ASTHENOSPHERE ASTRAPOPHOBIA ASTROPHYSICAL ATMOSPHERICAL ATTORNEYSHIPS AUTOCEPHALIES AUTOCEPHALOUS AUTOMORPHISMS AZATHIOPRINES BARRISTERSHIP BIBLIOPHAGIST BLASTOSPHERES BLEPHARITISES BLEPHAROPLAST BRACHYPTERISM BRACHYPTEROUS BREASTPLOUGHS CALLIGRAPHIST CANDIDATESHIP CARDIOPATHIES CARTOGRAPHERS CARTOGRAPHIES CARTOPHILISTS CATASTROPHISM CATASTROPHIST CATHODOGRAPHS CEPHALISATION CEPHALOMETERS CEPHALOTOMIES CEROGRAPHISTS CHALCOPYRITES CHAPTERHOUSES CHEMOAUTROPHS CHIEFTAINSHIP CHIROGRAPHIST CHIROPRACTICS CHIROPRACTORS CHLOROPLASTAL CHLOROPLASTIC CHROMATOPSIAS CLAUSTROPHOBE COADJUTORSHIP COAUTHORSHIPS CONSTABLESHIP CONTAINERSHIP COPARTNERSHIP COPROPHAGISTS COSMOGRAPHIST CRAFTMANSHIPS CRAFTSMANSHIP CREATURESHIPS CRYOTHERAPIES CRYPTESTHESIA CUSTODIANSHIP CYSTOGRAPHIES DEMOGRAPHISTS DEPHLEGMATORS DERMATOPHYTES DESULPHURATED DESULPHURATES DIAPHANEITIES DIAPHRAGMITIS DIASTROPHISMS DICTATORSHIPS DITTOGRAPHIES DODECAPHONIST DRAFTSMANSHIP DRAUGHTPROOFS ELECTROGRAPHS ELEPHANTIASES ELEPHANTIASIC ELEPHANTIASIS EMPHYSEMATOUS ENANTIOMORPHS ENHYPOSTASIAS ENHYPOSTATISE ENHYPOSTATIZE ENTEROPATHIES ENTOMOPHAGIES ENTOMOPHAGOUS EPITHALAMIUMS EPITHELIALISE ERYTHROPENIAS ESOPHAGITIDES ESOPHAGITISES ETHNOGRAPHERS ETHNOGRAPHIES EXOPHTHALMIAS FELDSPATHOIDS GASTROSOPHERS GASTROSOPHIES GENTLEMANSHIP GLADIATORSHIP GRADUATESHIPS GRAMOPHONISTS GRANTSMANSHIP GRAPHITISABLE GRAPHOLOGISTS HAEMOPROTEINS HAGIOGRAPHIST HAIRSPLITTERS HAIRSPLITTING HALIPLANKTONS HAPPENSTANCES HAPTOTROPISMS HARUSPICATING HARUSPICATION HECTOGRAPHIES HEMATOPHAGOUS HEMATOPOIESES HEMATOPOIESIS HEMIPARASITES HEMIPARASITIC HEPATECTOMIES HEPATISATIONS HEPATIZATIONS HEPATOLOGISTS HEPATOSCOPIES HEPTASYLLABIC HERPETOFAUNAS HETEROCARPOUS HETEROPLASIAS HETEROPLASTIC HETEROPTERANS HIPPOCENTAURS HIPPOPHAGISTS HOLOPARASITES HOLOPARASITIC HOLOPLANKTONS HOMEOPATHISTS HOMOEOPATHIES HOMOEOPATHIST HOSPITALISING HOSPITALITIES HOSPITALIZING HOUSEPAINTERS HUNTSMANSHIPS HYDNOCARPATES HYDROPATHISTS HYDROSULPHATE HYETOGRAPHIES HYMENOPTERANS HYPAESTHESIAS HYPERACUITIES HYPERCAUTIOUS HYPERESTHESIA HYPERPARASITE HYPERREACTORS HYPERREALISTS HYPERSALINITY HYPERSTHENIAS HYPERTHERMIAS HYPHENISATION HYPNOTISATION HYPOACIDITIES HYPOGNATHISMS HYPONATREMIAS HYPOPHOSPHATE HYPOSTASISING HYPOSTASIZING HYPOSTATISING HYPOSTATIZING HYPOSULPHATES HYPOTHECATORS HYPOXANTHINES HYPSOMETRICAL ICHTHYOPSIDAN IMPERATORSHIP IMPOSTHUMATED IMPOSTHUMATES INHOSPITALITY INTERCHAPTERS INTERHOSPITAL ITHYPHALLUSES JUSTICIARSHIP KINESIPATHIES KINESIPATHIST KINESITHERAPY LAUREATESHIPS LEPTOCEPHALUS LITHOGRAPHERS LITHOGRAPHIES LITHOLAPAXIES LYCANTHROPIES LYCANTHROPIST LYMPHADENITIS LYMPHOBLASTIC LYMPHOMATOSES LYMPHOMATOSIS MACHTPOLITIKS MAGNETOGRAPHS MAGNETOSPHERE MASTIGOPHORAN MASTIGOPHORES MASTIGOPHORIC MEDIATORSHIPS MESATICEPHALY MESOTHERAPIES METALLOPHONES METAMORPHISMS METAMORPHISTS METAMORPHOSED METAMORPHOSES METAMORPHOSIS METAPHOSPHATE METAPHYSICIAN METAPHYSICISE METAPHYSICIST METAPHYSICIZE METAPSYCHICAL METEOROGRAPHS MISANTHROPIES MISANTHROPIST MODERATORSHIP MONOGRAPHISTS MONOPHOSPHATE MONOTHERAPIES MULTIHOSPITAL MUSICOTHERAPY MYCETOPHAGOUS MYTHOGRAPHERS MYTHOGRAPHIES NAPHTHALISING NATUROPATHIES NEPHROPATHIES NEUROPATHISTS NONPHOSPHATES ODONTOPHOBIAS ODONTOPHORANS OMMATOPHOROUS ONYCHOPHAGIST OPISTHOBRANCH OPISTHOGRAPHS OPISTHOGRAPHY OPISTHOSOMATA ORTHOGRAPHERS ORTHOGRAPHIES ORTHOGRAPHIST ORTHOPAEDISTS OSTEOGRAPHIES OSTEOPATHISTS OSTREOPHAGIES OSTREOPHAGOUS PAEDOTROPHIES PANAESTHESIAS PANAESTHETISM PANCHROMATISM PANPSYCHISTIC PANTECHNICONS PANTHEISTICAL PANTHEOLOGIES PANTHEOLOGIST PANTOGRAPHERS PANTOGRAPHIES PANTOPHAGISTS PANTOTHENATES PARAESTHESIAS PARAGNATHISMS PARAGRAPHISTS PARASYNTHESES PARASYNTHESIS PARASYNTHETIC PARASYNTHETON PARATHORMONES PARCHMENTIEST PARCHMENTISED PARCHMENTISES PARCHMENTIZES PARENTHESISED PARENTHESISES PARENTHESIZED PARENTHESIZES PARTHENOSPORE PARTISANSHIPS PARTIZANSHIPS PATHOGRAPHIES PATHOLOGISING PATRIARCHATES PATRIARCHISMS PELOTHERAPIES PENTADELPHOUS PENTAHYDRATES PENTASTICHOUS PERIHEPATITIS PERISHABILITY PETROGRAPHERS PETROGRAPHIES PETROPHYSICAL PHAGOCYTISING PHAGOCYTOSING PHALANSTERIAN PHALANSTERIES PHALANSTERISM PHALANSTERIST PHANEROPHYTES PHANTASMAGORY PHANTASMALIAN PHANTASMALITY PHARMACEUTICS PHARMACEUTIST PHARYNGITIDES PHARYNGITISES PHELLOPLASTIC PHENANTHRENES PHENOMENALIST PHENTOLAMINES PHILANTHROPES PHLOGISTICATE PHONASTHENIAS PHONETISATION PHONOCAMPTICS PHONOGRAPHIST PHOSPHATIDYLS PHOSPHATISING PHOSPHATIZING PHOSPHATURIAS PHOSPHORATING PHOSPHORYLATE PHOTOCATHODES PHOTODYNAMICS PHOTOENGRAVES PHOTOGRAPHERS PHOTOGRAPHIES PHOTOGRAPHIST PHOTOGRAVURES PHOTOMACHINES PHOTOMONTAGES PHOTOREALISMS PHOTOREALISTS PHOTOSCANNING PHOTOSTATTING PHOTOSYNTHATE PHOTOVOLTAICS PHRAGMOPLASTS PHRASEOLOGIST PHREATOPHYTES PHYCOXANTHINS PHYSICALISTIC PHYSICALITIES PHYSIOLATRIES PHYSIOTHERAPY PHYTOGRAPHERS PHYTOGRAPHIES PHYTONADIONES PHYTOSANITARY PICTOGRAPHIES PLETHYSMOGRAM POLYARTHRITIS POLYCYTHEMIAS POLYGRAPHISTS POLYHISTORIAN POLYTHALAMOUS POLYURETHANES POSTAPARTHEID POSTHOLOCAUST POSTULANTSHIP POTICHOMANIAS PREADULTHOODS PREANESTHETIC PREAUTHORIZES PREHARVESTING PREHISTORIANS PREHISTORICAL PROCATHEDRALS PROMETHAZINES PROMONARCHIST PROPHYLACTICS PROSENCHYMATA PROSTANTHERAS PROSTHODONTIA PROTOTHERIANS PSILANTHROPIC PSYCHASTHENIA PSYCHASTHENIC PSYCHIATRICAL PSYCHIATRISTS PSYCHOANALYST PSYCHOPATHICS PSYCHOPATHIES PSYCHOPATHIST PSYCHOSOMATIC PSYCHOTHERAPY PSYCHOTICALLY PTOCHOCRACIES PUNISHABILITY PYRITHIAMINES PYROCATECHINS PYROCATECHOLS PYROPHOSPHATE PYROSULPHATES QUAESTORSHIPS RADIOPHONISTS REGISTRARSHIP REHOSPITALISE REHOSPITALIZE RELATIONSHIPS REPHOTOGRAPHS RETAINERSHIPS RETINOPATHIES RETROPHILIACS RHINOPLASTIES RHYTHMOPOEIAS SAPROPHYTISMS SATANOPHANIES SATANOPHOBIAS SCINTIGRAPHIC SCLEROTHERAPY SCOPTOPHILIAS SCOPTOPHOBIAS SCRATCHPLATES SECRETARYSHIP SERGEANTSHIPS SERJEANTSHIPS SEROTHERAPIES SHAPESHIFTERS SHAPESHIFTING SHARPSHOOTERS SHARPSHOOTING SNAPSHOOTINGS SOMATOTROPHIC SOMATOTROPHIN SOPHISTICALLY SOPHISTICATED SOPHISTICATES SOPHISTICATOR SOUSAPHONISTS SPAGHETTIFIED SPAGHETTIFIES SPAGHETTILIKE SPATCHCOCKING SPATHIPHYLLUM SPATTERDASHES SPECTATORSHIP SPECTROGRAPHS SPECTROGRAPHY SPELEOTHERAPY SPERMATOPHORE SPERMATOPHYTE SPERMATORRHEA SPERMATOTHECA SPHACELATIONS SPHAGNOLOGIST SPHAIRISTIKES SPORTSMANSHIP STAPHYLINIDAE STAPHYLITISES STAPHYLOCOCCI STASIMORPHIES STATESMANSHIP STEEPLECHASED STEEPLECHASER STEEPLECHASES STEGANOGRAPHS STEGANOGRAPHY STENOGRAPHERS STENOGRAPHIES STENOGRAPHING STENOGRAPHIST STEPDAUGHTERS STEPHANOTISES STEREOGRAPHED STEREOGRAPHIC STRAPHANGINGS STRATIGRAPHER STRATIGRAPHIC STRATOSPHERES STRATOSPHERIC STROPHANTHINS STROPHIOLATED STYLOGRAPHIES SULPHONATIONS SULPHURATIONS SUPERATHLETES SUPERHUMANITY SUPERTEACHERS SURROGATESHIP SYCOPHANTICAL SYCOPHANTISED SYCOPHANTISES SYCOPHANTISMS SYCOPHANTIZED SYCOPHANTIZES SYCOPHANTLIER SYCOPHANTRIES SYMPATHECTOMY SYMPATHETICAL SYMPATHOLYTIC SYNADELPHITES SYPHILISATION SYPHILIZATION TACHISTOSCOPE TACHYGRAPHERS TACHYGRAPHIES TACHYGRAPHIST TACHYPHRASIAS TACHYPHYLAXES TACHYPHYLAXIS TAPHROGENESES TAPHROGENESIS TAUROMORPHOUS TECHNOPHILIAS TECHNOPHOBIAS TELEGRAPHESES TELEGRAPHISTS TELEPATHISING TENORRHAPHIES TEPHROMANCIES TERATOPHOBIAS TERPSICHOREAL TERPSICHOREAN THEANTHROPIES THEANTHROPISM THEANTHROPIST THEATROPHONES THERAPEUTISTS THERMOPLASTIC THIOSULPHATES THORACOPLASTY THORACOSCOPES TOXICOPHAGOUS TOXICOPHOBIAS TRACHEOPHYTES TRANSHIPMENTS TRANSHIPPINGS TRANSSHIPMENT TRANSSHIPPERS TRANSSHIPPING TRAPSHOOTINGS TREASURERSHIP TREPHINATIONS TRICHOPTERANS TRIPHOSPHATES TRIUMPHALISMS TRIUMPHALISTS TROPHOBLASTIC TYPOGRAPHISTS ULTRAPHYSICAL UNSYMPATHETIC URANOGRAPHIST VIBRAHARPISTS VIBRAPHONISTS WATERMANSHIPS WEATHERPERSON WEATHERPROOFS XANTHOPTERINS XIPHIPLASTRAL XIPHIPLASTRON YACHTSMANSHIP ZINJANTHROPUS