12 letters
- matriarchies20
- medievalisms24
- medievalists21
- mediocrities19
- melancholies23
- mendicancies24
- mesomorphies23
- metagalaxies25
- metallurgies20
- microscopies24
- millihenries20
- mineralogies19
- minstrelsies17
- misbelievers23
- misbelieving26
- miscellanies21
- misorienting19
- missiologies18
- missionaries16
- modularities18
- morphologies23
- movabilities23
- moviemakings29
- muliebrities20
- multielement22
- multiengines21
- multispecies23
- multistoried18
- musicalities20
- musicologies22
- mutabilities20
- myelopathies23
- naprapathies21
- narcolepsies20
- nebulosities18
- neckerchiefs28
- necromancies23
- negativities19
- nematologies19
- nephrologies21
- neuropathies19
- neuroscience21
- neutralities15
- newsweeklies24
- nomographies23
- nonbelievers22
- noncertified21
- noncountries19
- nonfluencies23
- nonlibraries18
- nonscientist18
- nonutilities16
- notabilities17
- numerologies20
- nuptialities18
- oceanologies19
- ochlocracies24
- oligophagies22
- oligopsonies19
- omnisciences23
- omnisciently23
- optimalities19
- organicities18
- organologies18
- orientalisms17
- orientalists14
- orientalized24
- orientalizes23
- orientations14
- orienteering16
- orismologies18
- orotundities15
- osmolalities17
- osmolarities16
- osteopathies17
- outachieving25
- ovariotomies19
- overachieved26
- overachiever25
- overachieves25
- oversupplied25
- oversupplies24
- palynologies22
- papyrologies23
- partialities16
- patriarchies20
- pensionaries17
- percipiences25
- percipiently25
- permanencies23
- perpetuities19
- perplexities26
- personalties17
- personifiers19
- pertinencies20
- perversities19
- philosophies23
- phlebologies24
- phlebotomies24
- photocopiers23
- photometries20
- phrenologies21
- phylacteries23
- phyllotaxies28
- physiologies22
- pickaninnies25
- pieceworkers25
- plasmogamies24
- plasticities19
- pleasantries17
- pleiotropies19
- pliabilities20
- plutocracies23
- polychromies26
- polyploidies23
- popularities20
- positivities19
- postmedieval24
- postulancies21
- potabilities19
- praxeologies25
- preamplifier25
- prebendaries20
- precedencies23
- preceptories21
- precertified22
- precertifies21
- preciosities18
- prehistories17
- preinterview23
- premierships23
- prepotencies22
- prepuberties22
- prequalified30
- prequalifies29
- presbyteries20
- presidencies20
- presignified22
- presignifies21
- prespecified25
- prespecifies24
- preveniently24
- priestliness17
- proclivities23
- proctologies21
- proficiently25
- profligacies24
- profundities21
- promontories19
- propensities19
- proprietress18
- prosperities18
- protectories18
- proveniences24
- psephologies23
- psychiatries22
- psychologies25
- quaternaries23
- quaternities23
- radiometries16
- reactivities19
- reassemblies19
- reclassified20
- reclassifies19
- recumbencies26
- redeliveries18
- redundancies20
- reexperience26
- refractories18
- regeneracies18
- regularities16
- reidentified18
- reidentifies17
- reinterviews20
- relativities17
- reluctancies21
- renographies20
- reorientated14
- reorientates13
- repellencies21
- repositories15
- repugnancies23
- resiliencies17
- resolidified18
- resolidifies17
- responsories16
- rhinoscopies21
- risibilities16
- rockabillies24
- rowanberries19
- rubefacients23
- saccharified24
- saccharifies23
- salabilities17
- salutatories14
- sanctimonies20
- sanguinities17
- sansevierias17
- schizogonies29
- schmaltziest30