gfire fgire gifre igfre figre ifgre gfrie fgrie grfie rgfie frgie rfgie girfe igrfe grife rgife irgfe rigfe firge ifrge frige rfige irfge rifge gfier fgier gifer igfer figer ifger gfeir fgeir gefir egfir fegir efgir giefr igefr geifr egifr iegfr eigfr fiegr ifegr feigr efigr iefgr eifgr gfrei fgrei grfei rgfei frgei rfgei gferi fgeri gefri egfri fegri efgri grefi rgefi gerfi egrfi regfi ergfi fregi rfegi fergi efrgi refgi erfgi giref igref grief rgief irgef rigef gierf igerf geirf egirf iegrf eigrf greif rgeif gerif egrif regif ergif iregf riegf iergf eirgf reigf erigf fireg ifreg frieg rfieg irfeg rifeg fierg iferg feirg efirg iefrg eifrg freig rfeig ferig efrig refig erfig irefg riefg ierfg eirfg reifg erifg
Note: these 'words' (valid or invalid) are all the permutations of the word gfire. These words are obtained by scrambling the letters in gfire.