index nidex idnex dinex ndiex dniex inedx niedx iendx eindx neidx enidx idenx dienx iednx eidnx deinx edinx ndeix dneix nedix endix denix ednix indxe nidxe idnxe dinxe ndixe dnixe inxde nixde ixnde xinde nxide xnide idxne dixne ixdne xidne dxine xdine ndxie dnxie nxdie xndie dxnie xdnie inexd niexd ienxd einxd neixd enixd inxed nixed ixned xined nxied xnied iexnd eixnd ixend xiend exind xeind nexid enxid nxeid xneid exnid xenid idexn diexn iedxn eidxn deixn edixn idxen dixen ixden xiden dxien xdien iexdn eixdn ixedn xiedn exidn xeidn dexin edxin dxein xdein exdin xedin ndexi dnexi nedxi endxi denxi ednxi ndxei dnxei nxdei xndei dxnei xdnei nexdi enxdi nxedi xnedi exndi xendi dexni edxni dxeni xdeni exdni xedni
Note: these 'words' (valid or invalid) are all the permutations of the word index. These words are obtained by scrambling the letters in index.