13 letters
- contradictory23
- contralateral19
- contraoctaves24
- contrapuntist22
- contrarieties17
- contrastively24
- contravention23
- contributions22
- controversial22
- controversies21
- controverters21
- controverting24
- convalescence29
- convalescents26
- conveniencies26
- conventiclers26
- conventioneer23
- convergencies27
- conversancies25
- conversations22
- conversazione31
- conversazioni31
- convertaplane26
- convertiplane26
- conveyancings30
- conveyorising26
- conveyorizing35
- convocational26
- convolvuluses29
- convulsionary26
- coordinations19
- coproductions25
- coreligionist20
- corespondents22
- cornification24
- correlational19
- correspondent22
- corresponding24
- corresponsive24
- corroboration20
- corruptionist21
- cosponsorship25
- costermongers22
- counteraction22
- craftspersons23
- crenellations20
- creolizations27
- curarizations27
- customization30
- cycloaddition25
- cyclohexanone33
- cytoskeletons24
- cytotaxonomic32
- dandification23
- deactivations22
- debilitations19
- decamethonium27
- decapitations21
- decarbonating24
- decarbonation22
- decarbonizers30
- decarbonizing33
- decelerations19
- decerebration21
- declinational21
- decommissions24
- decomposition24
- decompression24
- deconcentrate22
- deconditioned21
- decongestants21
- decongestions21
- deconsecrated22
- deconsecrates21
- deconstructed23
- deconstructor22
- decontaminate22
- decontrolling23
- decortication21
- decrepitation21
- deescalations19
- defibrination22
- deflagrations21
- deforestation18
- deformational22
- degenerations18
- deglaciations21
- degranulation20
- deinonychuses24
- deionizations25
- delaminations20
- deliberations19
- delimitations19
- demimondaines23
- demodulations21
- demolitionist19
- demonizations28
- demonological25
- demonologists21
- demonstrating21
- demonstration19
- demonstrative22
- demonstrators18
- demyelination22
- denationalize26
- denaturations17
- denominations20
- densification22
- denticulation21
- denunciations21
- deodorization25
- deontological22
- deontologists18
- deoxygenation27
- depersonalize28
- depopulations23
- depreciations21
- deputizations28
- deracinations19
- derealization25
- deregulations19
- derepressions18
- dermabrasions21
- desalinations17
- desegregation19
- desiderations16
- despoliations19
- despondencies23
- desquamations28
- dessertspoons18
- deterioration15
- determination19
- dethronements21
- detoxications25
- deuteragonist18
- deviationisms22
- deviationists19
- devolutionary23
- devolutionist21
- dexamethasone27
- diagonalizing30
- diazotization33
- diencephalons25
- dieselization25
- diffusionisms25
- diffusionists22
- digitizations26
- digressionary19
- dilapidations20
- dimensionally23
- dimensionless20
- dimerizations27
- diphthongized34
- diphthongizes33
- directionless19
- disaffections24
- disclamations22
- discoloration19
- disconcerting24
- disconfirming27
- disconformity26
- disconnecting25
- disconnection23
- discontenting22
- discontinuing23
- discontinuity22
- discontinuous21
- discretionary20
- disfunctional24
- disharmonious21
- disharmonized30
- disharmonizes29
- disillusioned19
- disinfections22
- disinflations20
- disinhibition21
- dispassionate18
- dispensations19
- dispositional19
- dispossession18
- disproportion21
- disquisitions25
- dissemination19
- dissertations15
- dissimilation19
- dissimulation20
- dissociations18
- distillations17
- distributions19
- divarications22
- diversionists19
- documentation23
- dodecahedrons22
- dodecaphonies24
- dodecaphonist24
- dogmatization29
- domestication21
- domiciliation22
- donnishnesses19
- draftspersons21