There are 496 thirteen-letter words containing A, C, H, O and P, https://www.bestwordlist.com/c/a/5/13letterwordswithachop.htm
ACCOMPLISHERS ACCOMPLISHING ACETAMINOPHEN ACHROMATOPSIA ACIDOPHILUSES
ACTINOMORPHIC ACTINOTHERAPY ADIAPHORISTIC AETHRIOSCOPES AICHMOPHOBIAS
AILOUROPHILIC AILOUROPHOBIC ALLELOMORPHIC AMPHICTYONIES AMPHISTOMATIC
AMPHITRICHOUS ANAPHORICALLY ANAPHRODISIAC ANAPHYLACTOID ANCHORPERSONS
ANGLOPHOBIACS ANTHROPOGENIC ANTIPSYCHOTIC APHELIOTROPIC APHRODISIACAL
APOCHROMATISM APOPHLEGMATIC ARACHNOPHOBES ARACHNOPHOBIA ARACHNOPHOBIC
ARCHAEOPTERYX ARCHBISHOPRIC ARCHIPELAGOES ARCHIPHONEMES ARCTOPHILISTS
ARTHROSCOPIES ASSOCIATESHIP ASTROPHYSICAL ATMOSPHERICAL AUTOCEPHALIES
AUTOCEPHALOUS AUTOGRAPHICAL BACHELORSHIPS BACTERIOPHAGE BACTERIOPHAGY
BENTHOPELAGIC BIBLIOGRAPHIC BIOGEOGRAPHIC BIOPHYSICALLY BRACHYPTEROUS
BRONCHOGRAPHY BRONCHOSPASMS CACOGRAPHICAL CACOPHONOUSLY CAMPHORACEOUS
CANCEROPHOBIA CANCERPHOBIAS CAPNOGRAPHIES CARDIOGRAPHER CARDIOGRAPHIC
CARDIOPATHIES CARTOGRAPHERS CARTOGRAPHIES CARTOPHILISTS CATASTROPHISM
CATASTROPHIST CATHODOGRAPHS CATHODOGRAPHY CEPHALISATION CEPHALIZATION
CEPHALOMETERS CEPHALOMETRIC CEPHALOPODANS CEPHALOPODOUS CEPHALORIDINE
CEPHALOSPORIN CEPHALOTHORAX CEPHALOTOMIES CERAUNOGRAPHS CEROGRAPHICAL
CEROGRAPHISTS CERVICOGRAPHY CHALCOGRAPHER CHALCOGRAPHIC CHALCOPYRITES
CHAMPIONESSES CHAMPIONSHIPS CHANNELOPATHY CHAPTERHOUSES CHARTOGRAPHER
CHARTOGRAPHIC CHEMAUTOTROPH CHEMOAUTROPHS CHIROGRAPHERS CHIROGRAPHIES
CHIROGRAPHIST CHIROPRACTICS CHIROPRACTORS CHLAMYDOSPORE CHLOROPLASTAL
CHLOROPLASTIC CHOREGRAPHERS CHOREGRAPHIES CHOREGRAPHING CHOREOGRAPHED
CHOREOGRAPHER CHOREOGRAPHIC CHOREPISCOPAL CHOROGRAPHERS CHOROGRAPHIES
CHROMATOGRAPH CHROMATOPHORE CHROMATOPSIAS CHROMOTHERAPY CHRONOGRAPHER
CHRONOGRAPHIC CHRONOTHERAPY CINEMATOGRAPH CLAUSTROPHOBE CLIMATOGRAPHY
COADJUTORSHIP COAUTHORSHIPS COCHAIRPERSON COLLEAGUESHIP COMMANDERSHIP
COMPANIONHOOD COMPANIONSHIP CONSTABLESHIP CONTAINERSHIP COPARTNERSHIP
COPROPHAGISTS COPROPHILIACS COPYRIGHTABLE CORPORALSHIPS CORRIVALSHIPS
COSMOGRAPHERS COSMOGRAPHIES COSMOGRAPHIST CRYOTHERAPIES CRYPTOGRAPHER
CRYPTOGRAPHIC CUSTODIANSHIP CYSTOGRAPHIES CYTOPATHOLOGY DACTYLOGRAPHY
DEMOGRAPHICAL DERMATOPHYTIC DICTATORSHIPS DIENCEPHALONS DISCOGRAPHERS
DISCOGRAPHIES DODECAPHONIES DODECAPHONISM DODECAPHONIST DOLICHOCEPHAL
ELECTROGRAPHS ELECTROGRAPHY ENCEPHALOCELE ENCEPHALOGRAM ENCEPHALOMATA
ENCEPHALOTOMY ENDOLYMPHATIC EPENCEPHALONS EPITRACHELION ERGATOMORPHIC
ESOPHAGOSCOPE ESOPHAGOSCOPY ETHNOGRAPHICA FLUOROGRAPHIC FRANCOPHOBIAS
GEOPHYSICALLY GLYPHOGRAPHIC GLYPTOGRAPHIC GONADOTROPHIC GRAPHOLOGICAL
HAEMOPHILIACS HARUSPICATION HECTOGRAPHIES HECTOGRAPHING HELIOTROPICAL
HEMATOPOIETIC HEPATECTOMIES HEPATOSCOPIES HEPTADECANOIC HETEROCARPOUS
HETEROGRAPHIC HETEROPLASTIC HETEROTYPICAL HIERACOSPHINX HIPPOCENTAURS
HIPPOCREPIANS HOLOPARASITIC HOMALOGRAPHIC HOMOEOTYPICAL HOMOLOGRAPHIC
HYDNOCARPATES HYDROCEPHALIC HYDROCEPHALUS HYDROPATHICAL HYDROSCOPICAL
HYDROTHERAPIC HYGROSCOPICAL HYPERCAUTIOUS HYPERREACTORS HYPERROMANTIC
HYPERSARCOMAS HYPERSARCOSES HYPERSARCOSIS HYPNOANALYTIC HYPOACIDITIES
HYPOCALCAEMIA HYPOCALCAEMIC HYPOCALCEMIAS HYPOCHONDRIAC HYPOCHONDRIAS
HYPOCYCLOIDAL HYPOGLYCAEMIA HYPOGLYCAEMIC HYPOGLYCEMIAS HYPONATRAEMIC
HYPOTHECATING HYPOTHECATION HYPOTHECATORS HYPSOMETRICAL ICHNOGRAPHIES
ICHTHYOPSIDAN ICONOGRAPHERS ICONOGRAPHIES IDEOGRAPHICAL LEPTOCEPHALIC
LEPTOCEPHALUS LEXICOGRAPHER LEXICOGRAPHIC LOGOGRAPHICAL LYCANTHROPIES
LYCANTHROPIST LYMPHOBLASTIC LYMPHOGRAPHIC LYMPHOSARCOMA MACHTPOLITIKS
MACROCEPHALIA MACROCEPHALIC MALACOPHILIES MALACOPHILOUS MARCONIGRAPHS
MARSIPOBRANCH MASTIGOPHORIC MEGACEPHALOUS MEGALOCEPHALY MESENCEPHALON
MESOCEPHALICS MESOCEPHALIES MESOCEPHALISM MESOCEPHALOUS METENCEPHALON
MICROCEPHALIC MICROGRAPHERS MICROGRAPHICS MICROGRAPHIES MICROGRAPHING
MICROPHYSICAL MONOGRAPHICAL MORPHEMICALLY MORPHOLOGICAL MUSICOTHERAPY
MYCETOPHAGOUS MYTHOPOETICAL NARCOHYPNOSES NARCOHYPNOSIS NECROGRAPHERS
NECROPHILIACS NEPHROLOGICAL NEUROPATHICAL NOMOGRAPHICAL NONALPHABETIC
NONPATHOGENIC NONPHYSICIANS NYMPHAEACEOUS NYMPHOMANIACS OCEANOGRAPHER
OCEANOGRAPHIC OCHLOPHOBIACS ONYCHOPHAGIES ONYCHOPHAGIST ONYCHOPHORANS
OPISTHOBRANCH ORCHESOGRAPHY OREOGRAPHICAL ORGANOGRAPHIC ORTHOCEPHALIC
ORTHOEPICALLY ORTHOPAEDICAL OSCILLOGRAPHS OSCILLOGRAPHY PACKINGHOUSES
PAEDOPHILIACS PALAEOGRAPHIC PANCHROMATISM PANHARMONICON PANPHARMACONS
PANSOPHICALLY PANTECHNICONS PARACHRONISMS PARAPSYCHOSES PARAPSYCHOSIS
PARENCEPHALON PAROCHIALISED PAROCHIALISES PAROCHIALISMS PAROCHIALIZED
PAROCHIALIZES PARTHENOCARPY PARTHENOGENIC PATHOGENICITY PATHOGNOMONIC
PENTASTICHOUS PERICHONDRIAL PETROCHEMICAL PETROPHYSICAL PHAGOCYTISING
PHAGOCYTIZING PHAGOCYTOSING PHALLOCENTRIC PHARMACOGNOSY PHARMACOLOGIC
PHARMACOPEIAL PHARMACOPEIAS PHARMACOPOEIA PHARMACOPOEIC PHARYNGOSCOPE
PHARYNGOSCOPY PHELLOPLASTIC PHILANTHROPIC PHILHARMONICS PHILOMATHICAL
PHILOSOPHICAL PHLEBOGRAPHIC PHLEBOTOMICAL PHLEGMAGOGICS PHLOGISTICATE
PHONOCAMPTICS PHONOMETRICAL PHOTOCATHODES PHOTOCHEMICAL PHOTOCOPIABLE
PHOTODYNAMICS PHOTOMACHINES PHOTOREACTION PHOTOREACTIVE PHOTOSCANNING
PHOTOVOLTAICS PHREATOPHYTIC PHRENOLOGICAL PHTHALOCYANIN PHYCOXANTHINS
PHYSHARMONICA PHYSIOCRACIES PHYSIOGRAPHIC PHYSIOLOGICAL PHYTOCHEMICAL
PICTOGRAPHIES PLAGIOCEPHALY PLECTOGNATHIC PLETHORICALLY POLAROGRAPHIC
POLYCHROMATIC POLYCYTHAEMIA POLYCYTHEMIAS POLYTECHNICAL POSTHOLOCAUST
POTICHOMANIAS PREHISTORICAL PROCATHEDRALS PROMONARCHIST PROPHETICALLY
PROPHYLACTICS PROSENCEPHALA PROSENCHYMATA PROTHETICALLY PROTOCHORDATE
PSEPHOLOGICAL PSILANTHROPIC PSYCHOANALYSE PSYCHOANALYST PSYCHOANALYZE
PSYCHOBABBLED PSYCHOBABBLER PSYCHOBABBLES PSYCHODYNAMIC PSYCHOGRAPHIC
PSYCHOLOGICAL PSYCHOMACHIAS PSYCHOMACHIES PSYCHOPATHICS PSYCHOPATHIES
PSYCHOPATHIST PSYCHOSOMATIC PSYCHOTHERAPY PSYCHOTICALLY PTOCHOCRACIES
PYROCATECHINS PYROCATECHOLS PYROTECHNICAL QUADRAPHONICS QUADRIPHONICS
QUADROPHONICS RADICULOPATHY RAPPROCHEMENT RECHOREOGRAPH REFLECTOGRAPH
REPROACHFULLY REPROACHINGLY REPROGRAPHICS RETROPHILIACS RHAMPHOTHECAE
RHAPSODICALLY RHIZOCEPHALAN RHOPALOCEROUS SARCOPHAGUSES SCAPHOCEPHALI
SCAPHOCEPHALY SCENOGRAPHERS SCENOGRAPHIES SCEUOPHYLACIA SCEUOPHYLAXES
SCHIZOCARPOUS SCHIZOPHRENIA SCLEROTHERAPY SCOPOPHILIACS SCOPTOPHILIAS
SCOPTOPHOBIAS SCROPHULARIAS SEISMOGRAPHIC SELENOGRAPHIC SHARECROPPERS
SHARECROPPING SOMATOTROPHIC SOPHISTICALLY SOPHISTICATED SOPHISTICATES
SOPHISTICATOR SPATCHCOCKING SPECTATORSHIP SPECTROGRAPHS SPECTROGRAPHY
SPERMATOTHECA SPHACELATIONS SPHAGNICOLOUS SPLANCHNOCELE SPLANCHNOLOGY
STAPHYLOCOCCI STEREOGRAPHIC STRATOSPHERIC SUBDEACONSHIP SYCOPHANTICAL
SYCOPHANTISED SYCOPHANTISES SYCOPHANTISMS SYCOPHANTIZED SYCOPHANTIZES
SYCOPHANTLIER SYCOPHANTRIES SYMPATHECTOMY SYMPATHOLYTIC SYMPHONICALLY
TACHISTOSCOPE TAUTOPHONICAL TECHNOPHILIAS TECHNOPHOBIAS TECHNOPOLITAN
TELENCEPHALON TEPHROMANCIES TERPSICHOREAL TERPSICHOREAN THERMOGRAPHIC
THERMOPLASTIC THORACOPLASTY THORACOSCOPES THOROUGHPACED TOPOGRAPHICAL
TOXICOPHAGOUS TOXICOPHOBIAS TRACHEOPHYTES TRICHOPTERANS TROPHALLACTIC
TROPHOBLASTIC TYPOGRAPHICAL UNPROPHETICAL UNREPROACHFUL UNREPROACHING
VENOGRAPHICAL XEROPHTHALMIC XYLOGRAPHICAL ZINCOGRAPHERS ZINCOGRAPHIES
ZOOGEOGRAPHIC