11 letters
- housekeeper21
- housemaster17
- housemother19
- houseparent18
- houseperson18
- houseplants19
- housetrains15
- hucksterism24
- hurriedness16
- hyperimmune26
- hypermeters21
- hypermetric24
- hypermnesic25
- hypocenters22
- hypocorisms24
- hypotenuses20
- hypsometers21
- hypsometric24
- iconoscopes21
- immortelles19
- immunoblots23
- immurements22
- impalements22
- impeachment26
- imperilment22
- impersonate18
- implemented23
- implementer22
- implementor22
- importances21
- importunely22
- importuners19
- imposthumes23
- impotencies21
- impressment21
- impressures18
- improvement25
- imprudences23
- incorporate18
- incorporeal19
- incorrupted20
- incorruptly22
- inheritress14
- inoculators17
- inosculates17
- instructors16
- intercampus22
- interceders16
- intercepter18
- interceptor18
- intercessor15
- intercooler16
- intercouple20
- intercourse16
- interlopers16
- intermeshed18
- intermeshes17
- interphases17
- interposers15
- interrogees14
- interschool18
- interspaces18
- intersperse15
- introducers17
- introspects18
- ionospheres17
- ionospheric20
- ironmasters15
- isochronism20
- isochronous18
- isoleucines17
- isomorphism22
- isomorphous20
- kinetochore21
- kinetoscope22
- kinetosomes19
- lectureship21
- lemniscates19
- leprechauns22
- lepromatous19
- leprosarium19
- leptospires18
- letterpress15
- leukotomies20
- leukotriene18
- linecasters16
- lipogeneses18
- liposuction20
- lithenesses15
- lithosphere19
- lobectomies21
- lobotomises18
- locomotions19
- locomotives22
- loosestrife15
- loutishness16
- luminescent21
- lumpinesses20
- lumpishness22
- luteotropic19
- luteotropin17
- macintoshes20
- manometries18
- mantelpiece22
- manuscripts22
- marchioness20
- masterpiece20
- measurement19
- meerschaums23
- meitneriums19
- melanophore21
- melanosomes19
- meliorators15
- mellophones22
- memberships25
- mentorships20
- mercenaries18
- mercuration19
- meritorious15
- meromorphic25
- meromyosins20
- merrinesses15
- mesenchymes25
- mesenteries15
- mesmerizers26
- mesomorphic25
- mesonephric23
- mesonephroi20
- mesonephros20
- mesospheres19
- mesospheric22
- mesothelium21
- mesotrophic22
- metamorphic25
- metanephric23
- metanephroi20
- metanephros20
- methedrines18
- metrologies17
- metroplexes25
- microampere23
- microbursts21
- microcosmos23
- microliters18
- micrometers20
- micromethod23
- microphones23
- microporous21
- microprisms23
- microprobes23
- microscopes23
- microsphere22
- microspores20
- minestrones16
- minesweeper21
- minicourses19
- minischools21
- misanthrope20
- miscomputed25
- miscomputes24
- misconstrue19
- misesteemed18
- misfortunes19
- misreported18
- momentously22
- monarchisms23
- monarchists20
- monasteries15
- monetarisms18
- monitorship20
- monochasium24
- monochromat23
- monochromes23
- monochromic26
- monoculture21
- monologists18
- monologuist19
- monomorphic26
- monophonies21
- monophylies23
- monopolised20
- monopolises19
- monopolists19
- monopolizer28
- monopolizes28
- monopsonies19
- monostelies16
- monoterpene19
- monotheisms20
- monotheists17
- monstrously19
- moonlighter20
- moonshiners18
- moratoriums18
- morphactins23
- morphinisms23
- morphogenic25
- morphologic25
- morphometry24
- morulations17