10 letters
- harlotries13
- harpooners16
- harpooning19
- hatcheling21
- hatemonger18
- heartening16
- heavenlier18
- hebetating18
- hebetation16
- hectograph22
- hectoliter16
- hectometer18
- helicopted20
- helicopter19
- heliograph20
- heliometer16
- heliotrope16
- hematocrit18
- hemiplegia21
- hemiplegic24
- hemipteran19
- hepatizing27
- hepatocyte20
- heptachlor21
- heptagonal19
- heptameter18
- heretofore15
- heretrices15
- heritrices15
- hermetical19
- herniating16
- herniation14
- heroicomic21
- hesitating15
- hesitation13
- heteroatom15
- heterogeny17
- heterogony17
- heterophil18
- hibernator16
- hierarchic20
- hierophant18
- histologic18
- historical16
- holstering16
- homocercal22
- homogenate18
- homopteran19
- honeyeater15
- honoraries13
- honorarily16
- horizontal23
- hyperalert18
- hypergolic23
- hypertonia18
- hypertonic21
- hypocenter21
- hypotactic23
- iatrogenic16
- iceboating19
- iconoclast18
- iconolatry17
- illiterate12
- impatience20
- impeaching24
- impearling20
- importance20
- impregnate19
- inchoately19
- inchoative20
- incinerate15
- incogitant17
- incoherent17
- incomplete21
- inculcator19
- indelicate16
- inearthing16
- inelegance18
- infiltrate15
- ingathered16
- ingratiate13
- inheritors13
- inoculator16
- inoperable18
- inspirator14
- instigator13
- intaglioed15
- integrable17
- integrated14
- integrates13
- integrator13
- intenerate12
- interacted15
- intercaste14
- interceder15
- intercepts17
- interchain17
- intercrops17
- interfaith16
- interferer14
- intergrade14
- intergraft16
- intergroup17
- interiorly14
- interlaced16
- interlaces15
- interlayer14
- interleave16
- interliner13
- interlocal16
- interloped16
- interloper15
- interlopes15
- interocean15
- interorgan14
- interparty16
- interphase16
- interplant16
- interplead16
- interpoint15
- interposer14
- interprets14
- interreges13
- interregna14
- interrenal13
- interrogee13
- interspace17
- interstage13
- interstice14
- intertidal13
- intertrial12
- intertroop14
- intolerant13
- intoxicate21
- intragenic17
- intraplate15
- intreating14
- introspect17
- inveterate15
- invigorate17
- ionosphere16
- irrational12
- irrelative15
- irrelevant16
- irreligion14
- irreverent15
- irrigation13
- irrigators12
- irritating13
- irritation11
- isentropic17
- isocaloric17
- isochronal17
- isoplethic19
- iterations11
- itinerated12
- itinerates11
- lacerating17
- laceration15
- lactogenic20
- larghettos15
- laryngitic19
- laterizing23
- lathyritic18
- leathering16
- lectionary17
- legateship18
- legerities13
- legitimate16
- leistering14
- lengthener17
- lengthiest16
- leprechaun21
- leptotenes15
- lethargies15
- letterhead14
- letterings14
- levigation18
- levitating18
- levitation16
- liberating17
- liberation15
- licentiate15
- lienteries12
- lighteners16
- lighterage17
- lightering18
- lightplane20
- lightproof21
- limitrophe19
- linecaster15
- lipotropic20
- lipotropin18
- lipreading18
- literacies14
- literation12
- literators11
- literature12
- lithograph20
- lithologic19