grill rgill girll igrll rigll irgll grlil rglil glril lgril rlgil lrgil gilrl iglrl glirl lgirl ilgrl ligrl rilgl irlgl rligl lrigl ilrgl lirgl grill rgill girll igrll rigll irgll grlil rglil glril lgril rlgil lrgil gilrl iglrl glirl lgirl ilgrl ligrl rilgl irlgl rligl lrigl ilrgl lirgl grlli rglli glrli lgrli rlgli lrgli grlli rglli glrli lgrli rlgli lrgli gllri lglri gllri lglri llgri llgri rllgi lrlgi rllgi lrlgi llrgi llrgi gillr igllr glilr lgilr ilglr liglr gillr igllr glilr lgilr ilglr liglr gllir lglir gllir lglir llgir llgir illgr lilgr illgr lilgr lligr lligr rillg irllg rlilg lrilg ilrlg lirlg rillg irllg rlilg lrilg ilrlg lirlg rllig lrlig rllig lrlig llrig llrig illrg lilrg illrg lilrg llirg llirg
Note: these 'words' (valid or invalid) are all the permutations of the word grill. These words are obtained by scrambling the letters in grill.