13-letter words
There are 7,827 thirteen-letter words in our dictionary. The most common are HELMINTHIASES, HELMINTHIASIS, HELMINTHOLOGY, HELMSMANSHIPS and HELPFULNESSES.
Long words like these rarely fit in one go, but they are the answers to many jumbles, spelling challenges and word-ladder puzzles. Most are built from a shorter root plus a common prefix or suffix.
13-letter words
- helminthiases21
- helminthiasis21
- helminthology25
- helmsmanships25
- helpfulnesses21
- hemacytometer25
- hematologists19
- hematophagous24
- hematopoieses20
- hemichordates24
- hemimorphisms27
- hemocytometer25
- hemodilutions19
- hemorrhoidals22
- hepatectomies22
- hereditaments19
- hereditarians17
- herpesviruses21
- herpetologies19
- herringboning20
- heterocyclics25
- heterocystous21
- heterogametes19
- heterogametic21
- heterokaryons23
- heteromorphic25
- heterophonies21
- heteropterous18
- heterospories18
- heterosporous18
- heterothallic21
- heterozygoses29
- heterozygosis29
- hexamethonium30
- hexobarbitals27
- hideousnesses17
- hierarchizing31
- hilariousness16
- hirsutenesses16
- histaminergic21
- histochemical25
- historicities18
- historicizing28
- hoggishnesses21
- homeothermies23
- homestretches23
- hominizations27
- homogeneities19
- homoiothermic25
- homologations19
- homologically24
- homopolymeric27
- homoscedastic23
- homothallisms23
- honeycreepers23
- honorableness18
- honorifically24
- hopefulnesses21
- horizontality28
- hornswoggling22
- horsefeathers22
- horsemanships23
- horseradishes20
- horsewhippers26
- horsewhipping27
- horticultures18
- hospitalising19
- hospitalities18
- hospitalizing28
- hotheadedness21
- housebreakers22
- househusbands22
- housekeepings23
- houselessness16
- housepainters18
- housewarmings22
- housewiferies22
- humanizations27
- humifications23
- humiliatingly22
- humorlessness18
- hurriednesses17
- hurtfulnesses19
- hydrocephalic29
- hydrocolloids23
- hydrocrackers28
- hydrocracking29
- hydrogenating22
- hydrographers26
- hydrographies26
- hydromagnetic25
- hydroquinones29
- hydrothoraces25
- hydrothoraxes30
- hydrotropisms24
- hydroxylating31
- hymenopterans23
- hymenopterons23
- hymenopterous23
- hyperacuities23
- hyperarousals21
- hyperbolizing33
- hyperboloidal24
- hypercalcemic29
- hypercautious23
- hyperesthesia24
- hyperesthetic26
- hypereutectic25
- hyperfunction26
- hyperhidroses25
- hyperimmunize34
- hyperinflated25
- hyperkinesias25
- hyperlipemias25
- hypermetrical25
- hypermetropia25
- hypermetropic27
- hyperparasite23
- hyperphysical31
- hyperploidies24
- hyperpolarize32
- hyperproducer26
- hyperpyrexias33
- hyperrational21
- hyperreactive26
- hyperreactors23
- hyperrealisms23
- hyperromantic25
- hypersalinity24
- hypertensions21
- hypertensives24
- hyperthermias26
- hypertonicity26
- hypertrophies26
- hyperurbanism25
- hypervigilant25
- hypervirulent24
- hypocalcemias27
- hypochlorites26
- hypochondrias27
- hypoeutectoid24
- hypoglycemias29
- hypoglycemics31
- hypopharynges30
- hypopharynxes36
- hypopituitary26
- hyposensitize30
- hypospadiases24
- hypostatizing31
- hypothecating27
- hypothecation26
- hypothecators26
- hypoxanthines31
- hysterotomies21
- ichthyofaunae27
- ichthyofaunal27
- ichthyofaunas27
- ichthyologies25
- ichthyologist25
- iconographers21
- iconographies21
- idealizations23
- identicalness16
- ideogrammatic21
- idiomaticness18
- ignoblenesses16
- illiberalisms17
- illiberalness15
- illiquidities23
- illocutionary18
- illogicalness16
- illustriously16
- imaginariness16
- imagistically21
- imitativeness18
- immanentistic19
- immaterialism19
- immaterialist17
- immateriality20
- immaterialize26
- immediateness18
- immensenesses17
- immigrational18
- immiscibility24
- immoderations18
- immortalising18
- immortalities17
- immortalizers26
- immovableness22
- immunochemist24
- immunogeneses18
- immunogenesis18
- immunogenetic20
- immutableness19
- impalpability24
- impassability22
- impassibility22
- impassiveness20
- impassivities20
- impeccability26
- impecuniosity22
- impecuniously22
- imperceivable24
- impercipience23
- imperfectives25
- imperfectness22
- imperiousness17
- imperishables22
- impermanences21
- impermanently22
- impersonality20
- impersonalize26
- impertinences19
- impertinently20
- imperturbably24
- impetuosities17
- impetuousness17
- implacability24
- implantations17
- implicatively25
- impolitically22
- importunately20
- importunities17
- impoverishers23
- impracticably26
- impractically24
- impreciseness19
- impregnations18
- improvability25
- improvidences23
- improvidently24
- improvisatore20
- improvisatori20
- improvisators20
- impulsivities20
- inactivations18
- inadvertences19
- inanimateness15
- inappreciable21
- inappreciably24
- inarticulates15
- inattentively19
- incalescences19
- incantational15
- incapableness19
- incardination16
- incarnadining17
- incendiarisms18
- incinerations15
- inclinational15
- inclinometers17
- incognizances27
- incombustible21
- incommodities20
- incompatibles21
- incompetences21
- incongruences18
- incongruently19
- inconsecutive20
- inconsequence26
- inconsistence17
- inconsonances17
- inconstancies17
- incontinences17
- incontinently18
- inconveniency23
- inconvertible20
- inconvertibly23
- inconvincible22
- incorporative20
- incorporeally20
- incorrigibles18
- incorruptibly22
- incorruptions17
- incorruptness17
- incredibility21
- incredulities16
- incriminatory20
- incrustations15
- incuriosities15
- incuriousness15
- indehiscences21
- independences19
- indeterminism18
- indeterminist16
- indifferences22
- indigestibles17
- indisciplined19
- indisciplines18
- indispensably21
- indissociable18
- indissociably21
- indistinctive19
- individualise18
- individuating19
- indoctrinates16
- indoctrinator16
- indomethacins21
- industrialise14
- ineducability21
Other word lengths
13-letter words starting with
13-letter words ending in
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