13 letters
- deliberations19
- delicatessens19
- delimitations19
- demodulations21
- demonizations28
- demonstrating21
- demonstration19
- demonstrative22
- demonstrators18
- denaturations17
- denominations20
- densification22
- densitometers18
- densitometric21
- denunciations21
- depopulations23
- depreciations21
- deputizations28
- deracinations19
- deregulations19
- derepressions18
- dermabrasions21
- desalinations17
- desensitizers24
- desensitizing27
- desiderations16
- despoliations19
- desquamations28
- dessertspoons18
- detoxications25
- dialecticians22
- dibenzofurans32
- diencephalons25
- digitizations26
- dilapidations20
- dimensionally23
- dimensionless20
- dimerizations27
- disaffections24
- disclamations22
- disinfections22
- disinflations20
- dispensations19
- disquisitions25
- dissertations15
- dissociations18
- distillations17
- distributions19
- ditransitives19
- divarications22
- dodecahedrons22
- draftsmanship26
- draftspersons21
- duodecillions22
- echolocations23
- effectuations24
- elucubrations23
- emancipations24
- emarginations20
- emasculations22
- embolizations30
- encrustations19
- endoskeletons21
- energizations26
- enshrinements21
- ensorcellment23
- equalitarians25
- equalizations34
- equivocations31
- erythromycins26
- eternizations24
- etherizations25
- eviscerations21
- exacerbations27
- exaggerations25
- exasperations24
- excogitations26
- excruciations28
- exenterations22
- exercitations24
- exhilarations24
- expansibility30
- expansionisms28
- expansionists25
- expansiveness29
- expansivities28
- expatriations24
- expensiveness29
- explantations26
- exploitations25
- extensibility27
- extensionally26
- extensiveness26
- extensometers24
- extraversions25
- extrinsically28
- extroversions25
- facilitations21
- featherbrains22
- felicitations21
- feminizations30
- fenestrations18
- fermentations21
- ferrosilicons21
- fiberizations29
- fibrillations22
- fibrinolysins24
- finalizations28
- flagellations22
- flavoproteins25
- flocculations26
- fluidizations29
- fluoridations20
- fluorinations20
- fluorocarbons25
- focalizations30
- frankincenses26
- futilitarians19
- gamesmanships27
- gasifications22
- gastrulations18
- gemeinschafts27
- gentlepersons21
- genuflections25
- geometricians22
- geriatricians19
- glockenspiels28
- glycoproteins25
- gonadotropins21
- grantsmanship25
- greensickness24
- greenskeepers23
- griseofulvins25
- guardianships23
- habilitations20
- hallucinogens25
- halogenations20
- happenstances26
- hebraizations28
- helmsmanships28
- hemodilutions22
- hereditarians17
- heterokaryons22
- hominizations29
- homologations22
- hornswoggling27
- horsemanships24
- humanitarians21
- humanizations30
- humifications26
- hymenopterans25
- hymenopterons25
- hypertensions22
- hypertensives25
- hyposensitize30
- idealizations25
- illuminations21
- illustrations17
- immensenesses21
- immoderations21
- immunizations31
- imperfections26
- implantations22
- impregnations23
- inactivations22
- inaugurations19
- incinerations19
- inconsecutive26
- inconsequence32
- inconsiderate19
- inconsistence22
- inconsistency24
- inconsonances23
- inconspicuous26
- inconstancies22
- incorruptions22
- incrustations19
- indiscretions19
- indispensable23
- indispensably25
- indomethacins24
- inexpensively32
- infibulations23
- infiltrations19
- inflammations25
- ingratiations17
- inhabitations20
- inoffensively28
- inosculations20
- insalubrities19
- insanitations16
- insatiability20
- insatiateness15
- inscriptional22
- inscriptively27
- insectivorous22
- inseminations19
- insensibility21
- insensitively22
- insensitivity21