13 letters
- codependences26
- coelenterates18
- coilabilities21
- colinearities18
- collectivises25
- collectivizes34
- colorimetries20
- coltishnesses20
- commonalities24
- communalities25
- communicatees27
- compactnesses26
- complacencies30
- complaisances27
- complexnesses31
- concelebrates24
- concisenesses21
- concomitances27
- concrescences27
- concurrencies25
- conductresses22
- confederacies24
- conglomerates23
- conglutinates22
- congratulates21
- conidiophores23
- conjugalities30
- conservancies25
- conservatives25
- conservatizes30
- considerables22
- consistencies21
- conspicuities24
- consultancies23
- containerises18
- containerizes27
- contemporizes32
- contingencies24
- contraoctaves24
- contrarieties17
- controversies21
- conveniencies26
- convergencies27
- conversancies25
- convolvuluses29
- coparcenaries23
- copiousnesses21
- coplanarities21
- copolymerizes34
- cordialnesses19
- cordwaineries21
- corporalities20
- correctitudes21
- correctnesses20
- corruptnesses21
- cosignatories19
- cosmetologies22
- cosmographies26
- costivenesses21
- counterargues21
- counterforces24
- counterimages23
- counterpoises21
- counterstates18
- counterstyles21
- countertrades19
- courtlinesses19
- crabbednesses24
- craniometries20
- credibilities21
- criminalities21
- criminologies23
- criticalities20
- crookednesses22
- crowdednesses22
- crumblinesses25
- crunchinesses24
- cryobiologies24
- cryopreserves25
- cryosurgeries21
- cryotherapies23
- cryptanalyses25
- culpabilities25
- cultishnesses21
- cunnilinguses24
- cunningnesses23
- curablenesses22
- curiousnesses19
- currentnesses19
- cursivenesses22
- cursorinesses18
- customshouses23
- cyclicalities26
- cyclopropanes29
- cyclosporines26
- cysticercoses24
- cytomembranes28
- dactylologies23
- daredevilries20
- darlingnesses19
- decaffeinates24
- decasyllables25
- decentralizes28
- dechlorinates21
- decidednesses20
- decompensates24
- deconsecrates21
- defenestrates18
- defibrillates22
- degringolades21
- deinonychuses24
- delinquencies30
- demagogueries22
- demigoddesses21
- demilitarizes27
- demimondaines23
- demineralizes28
- denaturalizes26
- deniabilities19
- denominatives23
- denuclearizes29
- depoliticizes30
- depolymerizes32
- depressurizes27
- dermatologies20
- dermatophytes24
- despondencies23
- determinacies21
- detumescences25
- deuterostomes18
- deviousnesses20
- devotednesses20
- diaphaneities20
- diffusenesses22
- diffusivities25
- dilatometries18
- dingleberries21
- dinucleotides21
- diphthongizes33
- directivities21
- disaccharides23
- disadvantages22
- disaffiliates21
- disaggregates20
- disallowances23
- disambiguates23
- disassemblies21
- disassociates17
- discographies24
- discomfitures24
- discomposures24
- discordancies22
- discourtesies18
- discrepancies24
- discriminates21
- disfranchises23
- disharmonizes29
- disincentives23
- disintegrates17
- disobediences22
- disorientates15
- disquantities25
- disseverances22
- dissymmetries22
- distantnesses16
- distinguishes20
- ditransitives19
- diversenesses19
- dividednesses21
- documentaries22
- dodecaphonies24
- doggishnesses21
- dolefulnesses21
- dollishnesses19
- dolphinfishes26
- doltishnesses18
- domesticities20
- donnishnesses19
- doughtinesses20
- drapabilities21
- drivabilities22
- drunkennesses22
- dubiousnesses20
- dumortierites18
- durablenesses20
- dutifulnesses21
- dynamometries23
- earnestnesses15
- earthlinesses17
- ectoparasites19
- ecumenicities24
- editorializes24
- educabilities22
- educationeses19
- effectivities26
- elderlinesses17
- electricities20
- electrologies20
- electrophiles23
- electroplates21