douce oduce duoce udoce oudce uodce docue odcue dcoue cdoue ocdue codue ducoe udcoe dcuoe cduoe ucdoe cudoe oucde uocde ocude coude ucode cuode douec oduec duoec udoec oudec uodec doeuc odeuc deouc edouc oeduc eoduc dueoc udeoc deuoc eduoc uedoc eudoc ouedc uoedc oeudc eoudc ueodc euodc doceu odceu dcoeu cdoeu ocdeu codeu doecu odecu deocu edocu oedcu eodcu dceou cdeou decou edcou cedou ecdou ocedu coedu oecdu eocdu ceodu ecodu duceo udceo dcueo cdueo ucdeo cudeo dueco udeco deuco educo uedco eudco dceuo cdeuo decuo edcuo ceduo ecduo ucedo cuedo uecdo eucdo ceudo ecudo ouced uoced ocued coued ucoed cuoed ouecd uoecd oeucd eoucd ueocd euocd oceud coeud oecud eocud ceoud ecoud uceod cueod uecod eucod ceuod ecuod
Note: these 'words' (valid or invalid) are all the permutations of the word douce. These words are obtained by scrambling the letters in douce.