runic urnic rnuic nruic unric nuric ruinc urinc riunc irunc uirnc iurnc rniuc nriuc rinuc irnuc niruc inruc unirc nuirc uinrc iunrc niurc inurc runci urnci rnuci nruci unrci nurci rucni urcni rcuni cruni ucrni curni rncui nrcui rcnui crnui ncrui cnrui uncri nucri ucnri cunri ncuri cnuri ruicn uricn riucn irucn uircn iurcn rucin urcin rcuin cruin ucrin curin ricun ircun rciun criun icrun cirun uicrn iucrn ucirn cuirn icurn ciurn rnicu nricu rincu irncu nircu inrcu rnciu nrciu rcniu crniu ncriu cnriu ricnu ircnu rcinu crinu icrnu cirnu nicru incru nciru cniru icnru cinru unicr nuicr uincr iuncr niucr inucr uncir nucir ucnir cunir ncuir cnuir uicnr iucnr ucinr cuinr icunr ciunr nicur incur nciur cniur icnur cinur
Note: these 'words' (valid or invalid) are all the permutations of the word runic. These words are obtained by scrambling the letters in runic.