dench ednch dnech ndech endch nedch decnh edcnh dcenh cdenh ecdnh cednh dnceh ndceh dcneh cdneh ncdeh cndeh encdh necdh ecndh cendh ncedh cnedh denhc ednhc dnehc ndehc endhc nedhc dehnc edhnc dhenc hdenc ehdnc hednc dnhec ndhec dhnec hdnec nhdec hndec enhdc nehdc ehndc hendc nhedc hnedc dechn edchn dcehn cdehn ecdhn cedhn dehcn edhcn dhecn hdecn ehdcn hedcn dchen cdhen dhcen hdcen chden hcden echdn cehdn ehcdn hecdn chedn hcedn dnche ndche dcnhe cdnhe ncdhe cndhe dnhce ndhce dhnce hdnce nhdce hndce dchne cdhne dhcne hdcne chdne hcdne nchde cnhde nhcde hncde chnde hcnde enchd nechd ecnhd cenhd ncehd cnehd enhcd nehcd ehncd hencd nhecd hnecd echnd cehnd ehcnd hecnd chend hcend nched cnhed nhced hnced chned hcned
Note: these 'words' (valid or invalid) are all the permutations of the word dench. These words are obtained by scrambling the letters in dench.