11 letters
- interrogate14
- interrogees14
- interrupter16
- interruptor16
- interschool18
- intersected16
- interspaced19
- interspaces18
- intersperse15
- interstices15
- interstrain13
- intertribal16
- intestacies15
- intolerance17
- intoxicates22
- intrathecal18
- intricately18
- introspects18
- investigate18
- invigorates18
- invigorator18
- ionospheres17
- ionospheric20
- ironhearted15
- irrationals13
- irrealities12
- irredentist13
- irrelevance20
- irreligions15
- irreverence19
- irrigations14
- irritations12
- isoelectric18
- itineraries12
- jargonistic26
- kinesthetic21
- kinetochore21
- kinetoplast20
- kinetoscope22
- lacerations16
- latchstring20
- leatherette14
- leatherneck22
- lecithinase18
- lectureship21
- legateships19
- legionaries15
- legionnaire16
- legislation16
- legitimates17
- legitimator17
- lengtheners18
- leprechauns22
- lethalities15
- letterheads15
- letterpress15
- letterspace18
- levigations19
- levitations17
- liberations16
- libertinage18
- licentiates16
- lighterages18
- lightplanes21
- linearities13
- linecasters16
- linecasting19
- lionhearted16
- lipogeneses18
- lipogenesis18
- lipoprotein19
- liposuction20
- lipotropins19
- lipreadings19
- literations13
- literatures13
- lithographs21
- lithologies17
- lithophanes20
- lithosphere19
- lithotomies17
- lithotripsy19
- litigations15
- logarithmic22
- logistician18
- logographic24
- logomachies22
- longevities19
- lowercasing21
- luteotropic19
- luteotropin17
- lycanthrope23
- machineries20
- malingerers18
- malposition19
- mantelpiece22
- marionettes15
- martensitic18
- masterpiece20
- maternities15
- melanophore21
- meliorating18
- melioration16
- meliorators15
- mentalistic19
- mentalities16
- mercenaries18
- mercerising20
- meritocrats17
- mesonephric23
- mesonephroi20
- mesopelagic23
- mesotrophic22
- metacenters18
- metagenetic20
- metanephric23
- metanephroi20
- metanephros20
- meteoritics17
- metrication18
- metrologies17
- metrologist17
- micrographs24
- microliters18
- microphages24
- microphones23
- microsphere22
- mineralogic21
- misaltering18
- misanthrope20
- miscoloring21
- miscreating20
- miscreation18
- mislocating21
- mislocation19
- mispatching25
- misrelating18
- misteaching22
- mistreating17
- molestation16
- monitorship20
- monogastric20
- monographic25
- monophagies22
- moonlighter20
- morphactins23
- morphogenic25
- mortalities15
- nalorphines19
- narcoleptic22
- natriuretic16
- nearsighted17
- necessitate15
- necrologies18
- necrologist18
- necrophilia21
- necrophilic24
- necropoleis19
- negotiation15
- negotiators14
- negotiatory16
- negrophobes22
- negrophobia22
- neocortexes22
- neocortical19
- neocortices18
- neologistic18
- neophiliacs21
- neorealists13
- nephelinite19
- nephritides18
- nephrostome20
- nephrotoxic27
- neuroleptic20
- neurologies16
- neurologist16
- neuropathic21
- neurotropic19
- neutrophils19
- nightscopes22
- nitrogenase15
- nomographic25
- nonartistic16
- nonathletes16
- nonathletic19
- noncarriers16
- nonhospital19
- nonliterate14
- nonoperatic19
- nonreactors16
- nonreceipts19
- nonsecretor16
- nontheistic18
- nontropical20
- normalities16
- northeaster14
- northerlies15
- northerners15
- northwester17
- notorieties12