There are 532 eleven-letter words containing A, P, S and Y, https://www.bestwordlist.com/c/a/4/11letterwordswithapsy.htm
AEPYORNISES AGAMOSPERMY AGRYPNOTICS AMORPHOUSLY AMPHICTYONS AMPHISTYLAR
AMPULLOSITY AMYLOPLASTS ANAGLYPHIES ANAPHYLAXES ANAPHYLAXIS ANGIOPLASTY
ANISOPHYLLY ANTILEPROSY ANTIPYRESES ANTIPYRESIS ANTIPYRINES APOCALYPSES
APOGAMOUSLY APPEASINGLY APPULSIVELY ARTHROSCOPY ASEPTICALLY ASPERSIVELY
ASPHYXIANTS ASPHYXIATED ASPHYXIATES ASPHYXIATOR ATTOPHYSICS AUDIOTYPIST
AZYGOSPORES BALLPLAYERS BAPTISMALLY BARYSPHERES BASIPETALLY BATHYSCAPES
BATHYSCAPHE BATHYSCAPHS BATHYSPHERE BIOPHYSICAL BODYSHAPERS BRACHYPRISM
BUMPSADAISY CALLIPYGOUS CALOTYPISTS CALYPSONIAN CAPACIOUSLY CARDPLAYERS
CARYOPSIDES CARYOPTERIS CHESSPLAYER CHROMATYPES CHRYSOPHANS CHRYSOPRASE
CLADOPHYLLS CLAPPERBOYS COPYREADERS COSMOGRAPHY CRANIOSCOPY CRAPULOSITY
CRAPULOUSLY CRYPTOGRAMS CYANOPHYTES CYBERSPACES CYBERSPEAKS CYCLOGRAPHS
CYCLOPEDIAS CYCLOSPORAS CYMOPHANOUS CYNOPHILIAS CYNOPHOBIAS CYPERACEOUS
CYSTOCARPIC CYSTOGRAPHY CYTOPATHIES CYTOPLASMIC CYTOPLASTIC DESPERATELY
DIAPOPHYSES DIAPOPHYSIS DISAPPLYING DISCOGRAPHY DISCREPANCY DISPARATELY
DISPENSABLY DISPLAYABLE DROPSICALLY DYSGRAPHIAS DYSGRAPHICS DYSPAREUNIA
DYSPATHETIC DYSPEPTICAL DYSTROPHIAS EMPLOYABLES EPISCOPALLY ERYTHROPSIA
EUCALYPTOLS EXPANSIVELY EXPANSIVITY EXPISCATORY EXPRESSWAYS FINGERPLAYS
FISSIPARITY GASTROSCOPY GASTROSOPHY GEOPHYSICAL GLYPHOSATES GRANOPHYRES
GYNOPHOBIAS GYPSOPHILAS GYROCOMPASS HAEMOLYMPHS HAEMOPTYSES HAEMOPTYSIS
HALOPHYTISM HANDYPERSON HEPATOCYTES HEPATOSCOPY HEPTAGYNOUS HORSEPLAYER
HOSPITALITY HYALOPHANES HYALOPLASMS HYDROGRAPHS HYDROPHANES HYDROPLANES
HYDROSPACES HYETOGRAPHS HYGROGRAPHS HYLOPATHISM HYLOPATHIST HYLOPHAGOUS
HYOPLASTRAL HYOPLASTRON HYPAETHRONS HYPALGESIAS HYPERACUSES HYPERACUSIS
HYPERAEMIAS HYPERBATONS HYPERDULIAS HYPERGAMIES HYPERGAMOUS HYPERMANIAS
HYPERMEDIAS HYPERMNESIA HYPEROSMIAS HYPERPLANES HYPERPLASIA HYPERPNOEAS
HYPERSALINE HYPERSEXUAL HYPERSOMNIA HYPERSPACES HYPERSTATIC HYPERTONIAS
HYPESTHESIA HYPHAERESES HYPHAERESIS HYPOBLASTIC HYPOCORISMA HYPOGASTRIA
HYPOGASTRIC HYPOGLOSSAL HYPONASTIES HYPOPHYSEAL HYPOPHYSIAL HYPOPLASIAS
HYPOPLASTIC HYPOPLASTRA HYPOSPADIAS HYPOSTASISE HYPOSTASIZE HYPOSTATISE
HYPOSTATIZE HYPOSTHENIA HYPOTHYMIAS HYPOXAEMIAS HYPSOGRAPHY HYPSOPHOBIA
IMPASSIVELY IMPASSIVITY IMPLAUSIBLY INESCAPABLY INSEPARABLY INSPIRATORY
INSUPERABLY ISOPACHYTES ITHYPHALLUS JELLYGRAPHS KARYOLYMPHS KARYOPLASMS
KINESIPATHY LAPAROSCOPY LITHOPHYSAE LYMPHEDEMAS LYMPHOBLAST LYMPHOGRAMS
MACROPHYTES MAMMAPLASTY MAMMOPLASTY MESOCEPHALY MESOTHERAPY METAPHYSICS
METAPSYCHIC METHYLDOPAS MISANTHROPY MISAPPLYING MISSHAPENLY MOULDYWARPS
MYCOPHAGIES MYCOPHAGIST MYCOPHAGOUS MYCOPLASMAL MYCOPLASMAS MYOGRAPHIES
MYOGRAPHIST MYRIAPODOUS MYSOPHOBIAS MYTHOPOEIAS NANOPHYSICS NASOPHARYNX
NONPAYMENTS NONPHYSICAL NOTARYSHIPS NYCTALOPIAS OSTEOGRAPHY OSTEOPLASTY
OSTREOPHAGY OVIPAROUSLY PACHYGYRIAS PACHYMETERS PACHYSANDRA PADDYMELONS
PADDYWHACKS PALAEOTYPES PALINGENESY PANEGYRISED PANEGYRISES PANEGYRISTS
PANEGYRIZES PANPSYCHISM PANPSYCHIST PANTRYMAIDS PANTYWAISTS PAPYRACEOUS
PARAKEELYAS PARALYMPICS PARAPHYSATE PARAPSYCHIC PARENCHYMAS PARONYCHIAS
PAROXYTONES PASSAGEWAYS PASSIBILITY PASTRYCOOKS PATAPHYSICS PATRONYMICS
PAUSELESSLY PELYCOSAURS PENNYROYALS PENTAGYNOUS PENTASTYLES PERSONALITY
PERVASIVELY PHAENOTYPES PHAGOCYTISE PHAGOCYTISM PHAGOCYTOSE PHALANSTERY
PHANTASYING PHARYNGEALS PHARYNGITIS PHRASEOLOGY PHYLARCHIES PHYLLOCLADS
PHYLLOTAXES PHYLLOTAXIS PHYLLOXERAS PHYSIATRICS PHYSIATRIES PHYSIATRIST
PHYSICALISM PHYSICALIST PHYSICALITY PHYSICALIZE PHYSICIANCY PHYSICIANER
PHYSIOCRACY PHYSIOCRATS PHYSIOLATER PHYSIOLATRY PHYTOPLASMA PLACELESSLY
PLASMOLYSED PLASMOLYSES PLASMOLYSIS PLASMOLYTIC PLASMOLYZED PLASMOLYZES
PLASTICALLY PLASTOMETRY PLATELAYERS PLATYFISHES PLAYACTINGS PLAYFELLOWS
PLAYFULNESS PLAYGROUNDS PLAYLEADERS PLAYLISTING PLAYMAKINGS PLAYREADERS
PLAYSCHOOLS PLAYWRIGHTS PLEASURABLY POLLYANNISH POLYACTINES POLYAMORIES
POLYAMORIST POLYAMOROUS POLYANDRIES POLYANDROUS POLYARCHIES POLYBASITES
POLYCARPIES POLYCARPOUS POLYCHAETES POLYCHASIUM POLYCLONALS POLYCRYSTAL
POLYDACTYLS POLYDIPSIAS POLYGAMISED POLYGAMISES POLYGAMISTS POLYGAMIZES
POLYHALITES POLYMASTIAS POLYMASTICS POLYMASTIES POLYMASTISM POLYMATHIES
POLYMERASES POLYNOMIALS POLYPHAGIAS POLYPHAGIES POLYPHAGOUS POLYSEMANTS
POLYSORBATE POLYZOARIES POSTHOLIDAY POSTNATALLY POSTPRIMARY POSTULATORY
PREASSEMBLY PREDYNASTIC PREHOLIDAYS PREPAYMENTS PRESANCTIFY PRESBYOPIAS
PRESBYTERAL PRESENTABLY PRESERVABLY PRESYNAPTIC PROCARYOTES PROGYMNASIA
PROKARYOTES PROPHYLAXES PROPHYLAXIS PROSAICALLY PROSENCHYMA PSALIGRAPHY
PSAMMOPHYTE PSYCHAGOGUE PSYCHEDELIA PSYCHIATERS PSYCHIATRIC PSYCHICALLY
PSYCHODELIA PSYCHODRAMA PSYCHOGASES PSYCHOGRAMS PSYCHOGRAPH PSYCHOMACHY
PSYCHOPATHS PSYCHOPATHY PULSATILITY PULSATIVELY PURVEYANCES PYRACANTHAS
PYRAMIDIONS PYRAMIDISTS PYRANOSIDES PYRENOCARPS PYROCLASTIC PYROGALLOLS
PYROLATRIES PYROLYSABLE PYROLYSATES PYROLYZATES PYROMANCERS PYROMANCIES
PYROMANIACS PYROPHOBIAS RAPACIOUSLY RAPTUROUSLY REDISPLAYED RESPECTABLY
RESPIRATORY RHINOPHYMAS RHINOPLASTY SAPONIFYING SAPROPHYTES SAPROPHYTIC
SATANOPHANY SCENOGRAPHY SCEPTICALLY SCEUOPHYLAX SCRAPEPENNY SCREENPLAYS
SCYPHISTOMA SCYPHOZOANS SEMELPARITY SEROTHERAPY SHAPELESSLY SIALOGRAPHY
SIPHONOGAMY SKEPTICALLY SKYSCRAPERS SKYSCRAPING SLEEPYHEADS SMARTYPANTS
SNOBOGRAPHY SOMATOTYPED SOMATOTYPES SPAGHETTIFY SPARKLESSLY SPARKLINGLY
SPASMOLYTIC SPASTICALLY SPECTRALITY SPECULARITY SPECULATORY SPELAEOLOGY
SPERMAPHYTE SPHAGNOLOGY SPHERICALLY SPHYGMOGRAM SPIRITUALLY SPIRITUALTY
SPIROGRAPHY SPLAYFOOTED SPONTANEITY SPORTSMANLY SPREADINGLY SPYCATCHERS
STANNOTYPES STAPHYLINID STAPHYLITIS STAPHYLOMAS STASIMORPHY STEATOPYGAS
STEATOPYGIA STEATOPYGIC STENOGRAPHY STIPENDIARY STIPULATORY STRATHSPEYS
STYLOGRAPHS STYLOGRAPHY SUPERAGENCY SUPERALLOYS SUPERDAINTY SUPERFAMILY
SUPERLAWYER SUPERLUNARY SUPERPLAYER SUPERSAFETY SUPPLIANTLY SUPPORTABLY
SWORDPLAYER SYCOPHANTIC SYCOPHANTLY SYCOPHANTRY SYLLEPTICAL SYMPATHETIC
SYMPATHIQUE SYMPATHISED SYMPATHISER SYMPATHISES SYMPATHIZED SYMPATHIZER
SYMPATHIZES SYMPETALIES SYMPETALOUS SYMPODIALLY SYMPOSIARCH SYMPOSIASTS
SYMPTOMATIC SYNALOEPHAS SYNAPTOSOME SYNCOPATING SYNCOPATION SYNCOPATIVE
SYNCOPATORS SYNSEPALOUS SYNTHESPIAN SYPHILOMATA TACHYGRAPHS TACHYPHASIA
TACHYPNOEAS TAPESTRYING TELPHERWAYS TEPPANYAKIS TRYPANOSOME TRYPTAMINES
TRYPTOPHANS TYPECASTERS TYPECASTING TYPICALNESS UNESCAPABLY UNPLAUSIBLY
UNSPARINGLY UNSPEAKABLY UNSTOPPABLY UPBUOYANCES URANOPLASTY VARITYPISTS
XANTHOPHYLS XYLOCARPOUS XYLOPHAGANS XYLOPHAGOUS