zilla izlla zlila lzila ilzla lizla zilla izlla zlila lzila ilzla lizla zllia lzlia zllia lzlia llzia llzia illza lilza illza lilza lliza lliza zilal izlal zlial lzial ilzal lizal ziall izall zaill azill iazll aizll zlail lzail zalil azlil lazil alzil ilazl liazl ialzl ailzl laizl alizl zilal izlal zlial lzial ilzal lizal ziall izall zaill azill iazll aizll zlail lzail zalil azlil lazil alzil ilazl liazl ialzl ailzl laizl alizl zllai lzlai zllai lzlai llzai llzai zlali lzali zalli azlli lazli alzli zlali lzali zalli azlli lazli alzli llazi llazi lalzi allzi lalzi allzi illaz lilaz illaz lilaz lliaz lliaz ilalz lialz iallz aillz lailz alilz ilalz lialz iallz aillz lailz alilz llaiz llaiz laliz alliz laliz alliz
Note: these 'words' (valid or invalid) are all the permutations of the word zilla. These words are obtained by scrambling the letters in zilla.