grave rgave garve agrve ragve argve grvae rgvae gvrae vgrae rvgae vrgae gavre agvre gvare vgare avgre vagre ravge arvge rvage vrage avrge varge graev rgaev garev agrev ragev argev greav rgeav gerav egrav regav ergav gaerv agerv gearv egarv aegrv eagrv raegv aregv reagv eragv aergv eargv grvea rgvea gvrea vgrea rvgea vrgea greva rgeva gerva egrva regva ergva gvera vgera gevra egvra vegra evgra rvega vrega revga ervga verga evrga gaver agver gvaer vgaer avger vager gaevr agevr geavr egavr aegvr eagvr gvear vgear gevar egvar vegar evgar avegr vaegr aevgr eavgr veagr evagr raveg arveg rvaeg vraeg avreg vareg raevg arevg reavg eravg aervg earvg rveag vreag revag ervag verag evrag averg vaerg aevrg eavrg vearg evarg
Note: these 'words' (valid or invalid) are all the permutations of the word grave. These words are obtained by scrambling the letters in grave.