gluen lguen gulen uglen lugen ulgen gleun lgeun gelun eglun legun elgun gueln ugeln geuln eguln uegln eugln luegn ulegn leugn elugn uelgn eulgn glune lgune gulne uglne lugne ulgne glnue lgnue gnlue nglue lngue nlgue gunle ugnle gnule ngule ungle nugle lunge ulnge lnuge nluge unlge nulge glenu lgenu gelnu eglnu legnu elgnu glneu lgneu gnleu ngleu lngeu nlgeu genlu egnlu gnelu ngelu englu neglu lengu elngu lnegu nlegu enlgu nelgu guenl ugenl geunl egunl uegnl eugnl gunel ugnel gnuel nguel ungel nugel genul egnul gneul ngeul engul negul uengl eungl unegl nuegl enugl neugl lueng uleng leung elung uelng eulng luneg ulneg lnueg nlueg unleg nuleg lenug elnug lneug nleug enlug nelug uenlg eunlg unelg nuelg enulg neulg
Note: these 'words' (valid or invalid) are all the permutations of the word gluen. These words are obtained by scrambling the letters in gluen.