12 letters
- conscription23
- consecration20
- consecutions21
- conservation21
- consignation20
- consociation20
- consolations18
- conspiration20
- constipation20
- constitution18
- constriction20
- construction21
- consultation19
- consummation24
- consumptions24
- contestation17
- continuation19
- contractions20
- contraptions20
- contribution21
- conurbations21
- convectional25
- conventional23
- conversation21
- conversional22
- convocations24
- convolutions23
- cooperations19
- coordination18
- coproduction24
- corporations19
- correctional20
- correlations17
- corrugations19
- coruscations20
- covariations20
- creationisms19
- creationists16
- crenelations18
- crenellation19
- crenulations19
- creolization26
- crepitations19
- criminations20
- crucifixions30
- culminations22
- cultivations22
- cupellations22
- curarization26
- cuspidations21
- cybernations22
- cyclizations31
- deactivation21
- deaminations18
- debarkations21
- debilitation18
- decantations18
- decapitation20
- deceleration18
- declamations21
- declarations18
- declensional20
- declinations19
- decollations19
- decommission23
- deconditions19
- decongestion20
- decussations18
- deescalation18
- defalcations21
- definitional19
- deflagration20
- deflationary20
- deflorations18
- defoliations18
- deformations20
- degeneration17
- deglaciation20
- deglutitions18
- degradations17
- degustations17
- dehydrations19
- deifications20
- deionization24
- delamination19
- delectations18
- deliberation18
- delimitation18
- delineations16
- demarcations20
- demodulation20
- demonization27
- denaturation16
- denervations19
- denigrations17
- denomination19
- denunciation20
- deoxidations22
- depopulation22
- deportations17
- depositional18
- depravations21
- deprecations20
- depreciation20
- depredations18
- deprivations21
- deputization27
- deracination18
- deregulation18
- derelictions18
- derepression17
- derivational19
- dermabrasion20
- desalination16
- descriptions20
- desecrations17
- desiccations20
- desideration15
- designations17
- desperations17
- despoliation18
- desquamation27
- destinations15
- destitutions15
- destructions18
- detestations14
- detoxication24
- deuterations15
- devaluations20
- devastations18
- deviationism21
- deviationist18
- devotionally22
- dictionaries17
- diffractions23
- diffusionism24
- diffusionist21
- difunctional23
- digitization25
- digressional17
- dilapidation19
- dilatational16
- dimensioning21
- dimerization26
- disaffection23
- disclamation21
- disfunctions22
- disillusions17
- disinfection21
- disinflation19
- disjunctions28
- dislocations18
- dispensation18
- dispositions17
- disputations18
- disquisition24
- disrelations15
- dissertation14
- dissipations17
- dissociation17
- dissolutions16
- distillation16
- distinctions18
- distortional15
- distractions17
- distribution18
- disunionists16
- divarication21
- diversionary20
- diversionist18
- divisionisms21
- divisionists18
- duodecillion21
- duplications22
- dysfunctions24
- echolocation22
- edifications20
- educationese18
- educationist18
- effectuation23
- ejaculations27
- elaborations17
- electioneers17
- elicitations17
- eliminations18
- elocutionary20
- elocutionist18
- elucidations19
- elucubration22
- elutriations15
- emancipation23
- emargination19
- emasculation21
- embarkations23
- embolization29
- embrocations22
- emotionalism20
- emotionalist17
- emotionality19
- emotionalize26