There are 630 fourteen-letter words containing A, P and U, https://www.bestwordlist.com/c/a/3/14letterwordswithapu.htm
ACCOUNTANTSHIP ACTINOMORPHOUS ACUPUNCTURINGS ACUPUNCTURISTS AILOUROPHILIAS
AILOUROPHOBIAS ALPHANUMERICAL AMPHIBIOUSNESS AMPHIBLASTULAE ANDROCEPHALOUS
ANTEPENULTIMAS ANTHROPOPHAGUS ANTHROPOPHUISM ANTICORRUPTION ANTIPOLLUTIONS
ANTIREPUBLICAN ANTISCRIPTURAL APPROPINQUATED APPROPINQUATES AUSPICIOUSNESS
AUTOBIOGRAPHER AUTOBIOGRAPHIC AUTOCOPROPHAGY AUTOPHYTICALLY AUTOPOLYPLOIDS
AUTOPOLYPLOIDY AUTORADIOGRAPH AUTOTETRAPLOID AUTOTYPOGRAPHY BASIDIOSPOROUS
CAMPANULACEOUS CAMPYLOTROPOUS CAPPARIDACEOUS CAPRICIOUSNESS CAPTIOUSNESSES
CATECHUMENSHIP CENTUPLICATING CENTUPLICATION CERULOPLASMINS CHEMAUTOTROPHS
CHEMOAUTOTROPH CHURCHMANSHIPS CLAUSTROPHILIA CLAUSTROPHOBES CLAUSTROPHOBIA
CLAUSTROPHOBIC COADJUTORSHIPS COLLEAGUESHIPS COMPURGATORIAL COMPUTERISABLE
COMPUTERIZABLE COMPUTERPHOBIA CONCEPTUALISED CONCEPTUALISER CONCEPTUALISES
CONCEPTUALISMS CONCEPTUALISTS CONCEPTUALIZED CONCEPTUALIZER CONCEPTUALIZES
CONDUPLICATION CONSPURCATIONS CONSTUPRATIONS CONSULTANTSHIP CONTEMPERATURE
CONTRAPUNTALLY CONTRAPUNTISTS CORPUSCULARIAN CORPUSCULARITY COTEMPORANEOUS
COUNTEREXAMPLE COUNTERPARTIES COUNTERPLANNED COUNTERPLAYERS COUNTERPLAYING
COUNTERPLEADED CULPABLENESSES CURIETHERAPIES CUSTODIANSHIPS DAGUERREOTYPED
DAGUERREOTYPER DAGUERREOTYPES DECAPSULATIONS DECOMPOUNDABLE DEDUPLICATIONS
DESPIRITUALISE DESPIRITUALIZE DESULPHURATING DESULPHURATION DIAPHANOUSNESS
DIPTEROCARPOUS DISCIPLINARIUM DISPAUPERISING DISPAUPERIZING DISPURVEYANCES
DISPUTABLENESS DISPUTATIOUSLY DISREPUTATIONS DISTEMPERATURE DOUBLESPEAKERS
DRAUGHTPROOFED DRAUGHTSPERSON EMPYREUMATICAL EMPYREUMATISED EMPYREUMATISES
EMPYREUMATIZED EMPYREUMATIZES ENCAPSULATIONS ENTEROPNEUSTAL EQUIPARTITIONS
EQUIPONDERANCE EQUIPONDERANCY EQUIPONDERATED EQUIPONDERATES EQUIPOTENTIALS
EUPHAUSIACEANS EUPHORBIACEOUS EUPHUISTICALLY EUTROPHICATION EXOPHTHALMUSES
EXPOSTULATIONS EXTEMPORANEOUS FERROPRUSSIATE FLAVOPURPURINS FLUNITRAZEPAMS
FLUOROGRAPHIES GALACTOPHOROUS GELANDESPRUNGS HAEMATOPHAGOUS HAPLOSTEMONOUS
HARUSPICATIONS HEPATOCELLULAR HIPPOPOTAMUSES HYDROCEPHALOUS HYDROPNEUMATIC
HYDROSULPHATES HYPERACUTENESS HYPERMASCULINE HYPERPITUITARY HYPERSEXUALITY
HYPERSTIMULATE HYPERURBANISMS HYPERURICAEMIA HYPERURICEMIAS ICHTHYOPHAGOUS
IMPERTURBATION IMPLAUSIBILITY IMPOSTHUMATING IMPOSTHUMATION IMPOSTUMATIONS
IMPUTABILITIES INAUSPICIOUSLY INCAPSULATIONS INCULPABLENESS INDUPLICATIONS
INFOPRENEURIAL INSUPERABILITY INTERPUNCTUATE INTERPUPILLARY JUSTICIARSHIPS
JUXTAPOSITIONS LEPTOCEPHALOUS LEPTODACTYLOUS LEUCOCYTOPENIA LEUKOCYTOPENIA
LIEUTENANTSHIP MACROCEPHALOUS MALACOPHYLLOUS MALPIGHIACEOUS MANIPULABILITY
MANIPULATIVELY MASTIGOPHOROUS MEGASPORANGIUM MERCAPTOPURINE METABISULPHITE
METACOMPUTINGS MICROCEPHALOUS MICROPULSATION MISASSUMPTIONS MISCOMPUTATION
MISPERSUASIONS MISPUNCTUATING MISPUNCTUATION MOUSETRAPPINGS MULTICUSPIDATE
MULTIHOSPITALS MULTIPARAMETER MULTIPARTICLES MULTIPARTYISMS MULTIPLATINUMS
MULTIPLICATION MULTIPLICATIVE MULTIPLICATORS MULTIPOTENTIAL MUNICIPALISING
MUNICIPALITIES MUNICIPALIZING MYRMECOPHAGOUS NANOPUBLISHING NEUROPATHOLOGY
NONSPECTACULAR NONSPECULATIVE NONTHERAPEUTIC OCCUPATIONALLY OMBUDSMANSHIPS
ORTHOCEPHALOUS OUTMANIPULATED OUTMANIPULATES OVERPARTICULAR OVERPERSUADING
OVERPERSUASION OVERPOPULATING OVERPOPULATION OVERSPECULATED OVERSPECULATES
PACHYDACTYLOUS PACHYDERMATOUS PALAEOCURRENTS PANDICULATIONS PANLEUCOPENIAS
PANLEUKOPENIAS PANSEXUALITIES PAPILIONACEOUS PAPILLOMAVIRUS PARAINFLUENZAS
PARAJOURNALISM PARALINGUISTIC PARAMENSTRUUMS PARANTHROPUSES PARENCHYMATOUS
PARSIMONIOUSLY PARTICULARISED PARTICULARISER PARTICULARISES PARTICULARISMS
PARTICULARISTS PARTICULARIZED PARTICULARIZER PARTICULARIZES PARTICULARNESS
PARTURIFACIENT PASTEURISATION PASTEURIZATION PATULOUSNESSES PAUPERISATIONS
PAUPERIZATIONS PEACEFULNESSES PEDUNCULATIONS PENNATULACEOUS PENTADACTYLOUS
PERAMBULATIONS PERCUTANEOUSLY PERIMENOPAUSAL PERIMENOPAUSES PERLOCUTIONARY
PERLUSTRATIONS PERMUTABLENESS PERPENDICULARS PERPETUALITIES PERSCRUTATIONS
PERSUADABILITY PERSUASIBILITY PERSUASIVENESS PERTINACIOUSLY PERTURBATIONAL
PERTURBATORIES PHARMACEUTICAL PHARMACEUTISTS PHENYLBUTAZONE PHENYLTHIOUREA
PHILADELPHUSES PHONAUTOGRAPHS PHOTOAUTOTROPH PHOTODUPLICATE PICAYUNISHNESS
PICORNAVIRUSES PICTURISATIONS PICTURIZATIONS PIPIWHARAUROAS PLASTOQUINONES
PLATINIRIDIUMS PLATITUDINISED PLATITUDINISER PLATITUDINISES PLATITUDINIZED
PLATITUDINIZER PLATITUDINIZES PLATYCEPHALOUS PLAUSIBILITIES PLEASURABILITY
PLECTOGNATHOUS PLESIOSAURIANS PLEURAPOPHYSES PLEURAPOPHYSIS PLOUGHMANSHIPS
PLURALISATIONS PLURALIZATIONS PLUVIOMETRICAL PNEUMATICITIES PNEUMATOLOGIES
PNEUMATOLOGIST PNEUMATOMETERS PNEUMATOPHORES PNEUMOBACILLUS PNEUMODYNAMICS
PNEUMOGASTRICS PNEUMOTHORACES PNEUMOTHORAXES POCOCURANTEISM POCOCURANTISMS
POCOCURANTISTS PODOPHTHALMOUS POLEMONIACEOUS POLYBUTADIENES POLYOMAVIRUSES
POLYUNSATURATE POPULARISATION POPULARIZATION PORTULACACEOUS POSTAMPUTATION
POSTCOPULATORY POSTGRADUATION POSTINDUSTRIAL POSTMENOPAUSAL POSTSURGICALLY
POSTULANTSHIPS PREACQUAINTING PREACQUISITION PREAUTHORIZING PRECARIOUSNESS
PREDACEOUSNESS PREDACIOUSNESS PREDEVALUATION PREFIGURATIONS PREFORMULATING
PREJUDICATIONS PREMANDIBULARS PREMANUFACTURE PREMENSTRUALLY PREOCCUPANCIES
PREOCCUPATIONS PREPUBLICATION PRESSURISATION PRESSURIZATION PREUNIFICATION
PROCELEUSMATIC PROCURATORSHIP PRONUCLEARISTS PRONUNCIAMENTO PRONUNCIATIONS
PROPAEDEUTICAL PROTOACTINIUMS PROTOLANGUAGES PROTUBERANCIES PROTUBERATIONS
PROVENTRICULAR PRUDENTIALISMS PRUDENTIALISTS PSEUDAESTHESIA PSEUDARTHROSES
PSEUDARTHROSIS PSEUDEPIGRAPHA PSEUDEPIGRAPHS PSEUDEPIGRAPHY PSEUDOCLASSICS
PSEUDOGRAPHIES PSEUDOMEMBRANE PSEUDOPREGNANT PSYCHOACOUSTIC PSYCHOSEXUALLY
PSYCHOSURGICAL PUGILISTICALLY PUGNACIOUSNESS PULVERISATIONS PULVERIZATIONS
PUNCTUATIONIST PUNDITOCRACIES PUPILABILITIES PURCHASABILITY PUTRIFICATIONS
PYROMETALLURGY QUADRUPLICATED QUADRUPLICATES QUASIPARTICLES QUINQUEPARTITE
QUINTUPLICATED QUINTUPLICATES RADIOAUTOGRAPH RAMPAGEOUSNESS RECAPITULATING
RECAPITULATION RECAPITULATIVE RECAPITULATORY RECOMPUTATIONS REDUPLICATIONS
REPOPULARISING REPOPULARIZING REPUBLICANISED REPUBLICANISES REPUBLICANISMS
REPUBLICANIZED REPUBLICANIZES REPUBLICATIONS REPUDIATIONIST REPUNCTUATIONS
REPUTABILITIES REPUTATIONLESS RESPIRITUALISE RESPIRITUALIZE RHIZOCEPHALOUS
ROENTGENOPAQUE SAUROPTERYGIAN SCAPHOCEPHALUS SCAPULIMANCIES SCAPULOMANCIES
SCEUOPHYLACIUM SCRIPTURALISMS SCRIPTURALISTS SEPTUAGENARIAN SEPTUAGENARIES
SESQUIPEDALIAN SESQUIPEDALITY SEXTUPLICATING SINANTHROPUSES SPACIOUSNESSES
SPATHIPHYLLUMS SPECTACULARITY SPERMATOGENOUS SPERMATOGONIUM SPIRITUALISERS
SPIRITUALISING SPIRITUALISTIC SPIRITUALITIES SPIRITUALIZERS SPIRITUALIZING
STAPHYLOCOCCUS STEGOCEPHALOUS STROPHANTHUSES SUBAPPEARANCES SUBATMOSPHERIC
SUBDEACONSHIPS SUBDEPARTMENTS SUBPOPULATIONS SUBPROLETARIAT SUBSPECIALISED
SUBSPECIALISES SUBSPECIALISTS SUBSPECIALIZED SUBSPECIALIZES SUBSPECIALTIES
SUBSPONTANEOUS SUBTHERAPEUTIC SUFFRAGANSHIPS SULFINPYRAZONE SULPHACETAMIDE
SULPHADIAZINES SULPHANILAMIDE SULPHATHIAZOLE SULPHONMETHANE SULPHONYLUREAS
SULPHURISATION SULPHURIZATION SUPERABILITIES SUPERABOUNDING SUPERABSORBENT
SUPERABUNDANCE SUPERACHIEVERS SUPERADDITIONS SUPERAMBITIOUS SUPERANNUATING
SUPERANNUATION SUPERCALENDERS SUPERCARGOSHIP SUPERCELESTIAL SUPERCILIARIES
SUPERCRIMINALS SUPERDAINTIEST SUPERDELEGATES SUPERDIPLOMATS SUPERDOMINANTS
SUPERELEVATING SUPERELEVATION SUPEREROGATING SUPEREROGATION SUPEREROGATIVE
SUPEREROGATORS SUPEREROGATORY SUPERESSENTIAL SUPERFETATIONS SUPERFICIALISE
SUPERFICIALITY SUPERFICIALIZE SUPERFOETATION SUPERGRAVITIES SUPERHARDENING
SUPERHUMANISED SUPERHUMANISES SUPERHUMANIZED SUPERHUMANIZES SUPERHUMANNESS
SUPERIMPORTANT SUPERIMPOSABLE SUPERINSULATED SUPERLOYALISTS SUPERMASCULINE
SUPERMEMBRANES SUPERMILITANTS SUPERNATATIONS SUPERNATURALLY SUPERNORMALITY
SUPERORDINATED SUPERORDINATES SUPERORGANISMS SUPEROVULATING SUPEROVULATION
SUPERPARTICLES SUPERPATRIOTIC SUPERPHENOMENA SUPERPHOSPHATE SUPERQUALITIES
SUPERREGIONALS SUPERSATURATED SUPERSATURATES SUPERSEXUALITY SUPERSONICALLY
SUPERSPECTACLE SUPERSTIMULATE SUPERTERRANEAN SUPPLANTATIONS SUPPLEMENTALLY
SUPPLICATINGLY SUPPORTABILITY SUPPOSITIONARY SUPRACHOROIDAL SUPRALAPSARIAN
SUPRALIMINALLY SUPRAMAXILLARY SUPRAMOLECULAR SUPRAMOLECULES SUPRASEGMENTAL
SURPASSINGNESS SURROGATESHIPS SUSPERCOLLATED SUSPERCOLLATES TABLESPOONFULS
TABLESPOONSFUL TELAUTOGRAPHIC TEMPERAMENTFUL THAUMATOGRAPHY THAUMATROPICAL
THYSANOPTEROUS TRACHYPTERUSES TRANSPICUOUSLY TREASURERSHIPS TREPIDATIOUSLY
ULTRACOMPETENT ULTRACREPIDATE ULTRAEXPENSIVE ULTRAPATRIOTIC ULTRAPRACTICAL
ULTRAPRECISION UNACCOMPLISHED UNADAPTABILITY UNAPPETISINGLY UNAPPETIZINGLY
UNAPPRECIATION UNAPPRECIATIVE UNAPPREHENSIVE UNAPPROACHABLE UNAPPROACHABLY
UNAPPROPRIATED UNAPPROPRIATES UNASPIRINGNESS UNCONTEMPLATED UNCONTEMPORARY
UNDECIPHERABLE UNDECIPHERABLY UNDECOMPOSABLE UNDEREMPHASISE UNDEREMPHASIZE
UNDERPAINTINGS UNDERPOPULATED UNDERSTRAPPERS UNDERSTRAPPING UNDESPAIRINGLY
UNEMPHATICALLY UNFLAPPABILITY UNINCORPORATED UNIPERSONALITY UNMETAPHORICAL
UNMETAPHYSICAL UNPALATABILITY UNPASSABLENESS UNPEDANTICALLY UNPERSUASIVELY
UNPLEASANTNESS UNPLEASANTRIES UNPOETICALNESS UNPOPULARITIES UNPRACTICALITY
UNPRAISEWORTHY UNPREDICTABLES UNPREMEDITABLE UNPREMEDITATED UNPREPAREDNESS
UNPROFESSIONAL UNPROGRAMMABLE UNPURCHASEABLE UNRECAPTURABLE UNRECIPROCATED
UNRESPECTABLES UNSCRIPTURALLY UNSOPHISTICATE UNSPECIFICALLY UNSPIRITUALISE
UNSPIRITUALIZE UNSPLINTERABLE UNSYMPATHISING UNSYMPATHIZING UPGRADEABILITY
UPROARIOUSNESS UPSTANDINGNESS URANOGRAPHICAL URANOGRAPHISTS VAPOROUSNESSES
VITUPERATIVELY VIVIPAROUSNESS XANTHOPHYLLOUS XIPHIHUMERALIS YUPPIFICATIONS