11 letters
- heulandites17
- hexadecimal28
- hexagonally27
- hexahedrons24
- hexahydrate25
- hexokinases25
- holographed22
- holographer21
- homeotherms21
- homeothermy23
- homoiotherm21
- hopscotched25
- hopscotches24
- hotheadedly20
- housefather19
- housemother19
- hydrosphere21
- hypersthene21
- hyphenating24
- hyphenation22
- hypothecate23
- hypothenuse22
- hypothermal24
- hypothermia23
- hypothermic26
- hypothesize29
- icosahedral18
- icosahedron18
- inauthentic19
- incoherence21
- indophenols20
- ingathering19
- inheritable18
- inheritance18
- inheritress14
- insheathing19
- intermeshed18
- intermeshes17
- intrathecal18
- ionospheres17
- ionospheric20
- ironhearted15
- jellyfishes29
- keypunchers27
- killifishes22
- kindhearted20
- kinestheses18
- kinesthesia18
- kinesthesis18
- kinesthetic21
- kingfishers23
- kitchenette21
- kitchenware24
- knucklehead28
- languishers18
- leatherback24
- leatherette14
- leatherleaf18
- leatherlike19
- leatherneck22
- leatherwood18
- lecherously21
- lengtheners18
- lengthening21
- letterheads15
- leukorrheal20
- leukorrheas19
- levelheaded21
- lichenology23
- lightheaded20
- lionhearted16
- lithenesses15
- lithosphere19
- loggerheads19
- loudmouthed21
- macintoshes20
- maidenheads19
- mantelshelf22
- mastheading20
- mathematics22
- mathematize28
- mesospheres19
- mesospheric22
- mesothelial18
- mesothelium21
- methedrines18
- methenamine21
- microfiches25
- microinches23
- microsphere22
- millihenrys21
- monographed23
- monotheisms20
- monotheists17
- motherboard20
- motherhoods19
- motherhouse19
- motherlands19
- mouthwashes22
- multiheaded20
- myasthenias19
- myasthenics22
- nailbrushes19
- nephelinite19
- netherworld19
- nonadhesive20
- nonattached19
- nonchemical25
- noncoherent19
- nonetheless16
- nontheistic18
- northeaster14
- northerlies15
- northerners15
- octahedrons18
- openhearted18
- openmouthed22
- orchestrate16
- othernesses14
- otherwhiles19
- otherworlds18
- outcheating20
- outpreached21
- outpreaches20
- outscheming23
- overcoached24
- overcoaches23
- overheaping23
- overhearing20
- overheating20
- overmatched24
- overmatches23
- overreached21
- overreacher20
- overreaches20
- overweighed23
- overwhelmed25
- ozonosphere26
- pantheistic20
- paragraphed22
- paragrapher21
- parentheses17
- parenthesis17
- parenthetic20
- paresthesia16
- paresthetic19
- pasticheurs20
- pentahedral19
- pentahedron19
- peripherals20
- peripheries19
- perithecial20
- perithecium23
- phelloderms22
- phenacaines21
- phenacetins21
- pheneticist20
- phenocopies23
- phenocrysts22
- phenologies20
- phenomenons22
- philhellene22
- philosopher22
- philosophes22
- photosphere21
- pigheadedly23
- pinfeathers20
- pinwheeling24
- pitcherfuls24
- pitchersful24
- planchettes21
- planisphere21
- platyfishes22
- polygrapher24
- polyhedrons21
- polyphenols24
- polytheisms22
- polytheists19
- prechecking29
- preheadache22
- prehearings19
- prehensions18
- preluncheon23
- premonished21
- premonishes20
- preschedule22
- prophesiers19
- prophesying24
- prophethood22
- prophetical23
- prosthetics19
- prosthetist16
- psychedelia23
- psychedelic26
- purpleheart21
- refinishers17
- refreshened18
- refurbished21
- refurbisher20
- refurbishes20