11 letters
- contraption19
- contritions16
- conurbation20
- convections23
- conventions21
- conversions20
- convictions23
- convocation23
- convolution22
- convulsions22
- cooperation18
- copulations20
- coronations16
- corotations15
- corporation18
- corrections18
- correlation16
- corrugation18
- corruptions19
- coruscation19
- counterions17
- covariation19
- creationism18
- creationist15
- crenelation17
- crenulation18
- crepitation18
- crimination19
- crucifixion29
- culmination21
- cultivation21
- cumulations21
- cunctations20
- cupellation21
- cushionless19
- cuspidation20
- cybernation21
- cyclization30
- deaerations13
- deamination17
- debarkation20
- decantation17
- deceptional20
- decimations19
- decisioning19
- declamation20
- declaration17
- declensions18
- declination18
- decollation18
- decondition18
- decorations16
- decryptions21
- decussation17
- dedications17
- defalcation20
- defamations19
- defecations19
- definitions17
- deflections20
- defloration17
- defoliation17
- deformation19
- deglutition17
- degradation16
- degustation16
- dehydration18
- deification19
- delectation17
- delegations16
- delineation15
- delusionary17
- demarcation19
- demolitions17
- denegations16
- denervation18
- denigration16
- denotations14
- denudations16
- deoxidation21
- depilations17
- deportation16
- depositions16
- depravation20
- deprecation19
- depredation17
- depressions16
- deprivation20
- deputations17
- dereliction17
- derivations17
- derogations15
- descensions17
- description19
- desecration16
- desiccation19
- designation16
- desolations14
- desorptions16
- desperation16
- destination14
- destitution14
- destruction17
- detestation13
- detonations14
- detractions16
- deuteration14
- devaluation19
- devastation17
- devolutions19
- devotionals18
- dictionally20
- diffraction22
- diffusional21
- digressions15
- dilatations14
- dimensional18
- dimensioned18
- diminutions18
- directional17
- discretions16
- discussions17
- disfunction21
- disillusion16
- disjunction27
- dislocation17
- dismissions16
- dispassions16
- dispersions16
- displosions17
- disposition16
- disputation17
- disrelation14
- disruptions17
- dissections16
- dissensions14
- dissentions14
- dissipation16
- dissolution15
- dissuasions14
- distensions14
- distentions14
- distinction17
- distortions13
- distraction16
- disunionist15
- divagations19
- divinations18
- divisionism20
- divisionist17
- dominations17
- dubitations17
- duplication21
- dysfunction23
- ebullitions18
- edification19
- educational18
- ejaculation26
- elaboration16
- electioneer16
- elicitation16
- elimination17
- elongations16
- elucidation18
- elutriation14
- eluviations18
- emaciations18
- embarkation22
- embrocation21
- emendations17
- emigrations17
- emotionally19
- emotionless16
- enamoration16
- enchiridion19
- encryptions21
- enervations17
- enucleation18
- enumeration17
- enunciation18
- envisioning20
- epilimnions20
- epoxidation23
- equitations22
- eradication16
- erosionally16
- erotization21
- eructations16
- escalations16
- estimations15
- estivations16
- ethionamide18
- etiolations13
- evacuations20
- evagination19
- evaluations18
- evaporation19
- exaltations20
- examination23
- excavations26