islet silet ilset liset sliet lsiet iselt sielt ieslt eislt seilt esilt ilest liest ielst eilst leist elist sleit lseit selit eslit lesit elsit islte silte ilste liste slite lsite istle sitle itsle tisle stile tsile iltse litse itlse tilse ltise tlise sltie lstie stlie tslie ltsie tlsie isetl sietl iestl eistl seitl esitl istel sitel itsel tisel stiel tsiel ietsl eitsl itesl tiesl etisl teisl setil estil steil tseil etsil tesil ilets liets ielts eilts leits elits iltes lites itles tiles lties tlies ietls eitls itels tiels etils teils letis eltis lteis tleis etlis telis sleti lseti selti eslti lesti elsti sltei lstei stlei tslei ltsei tlsei setli estli steli tseli etsli tesli letsi eltsi ltesi tlesi etlsi telsi
Note: these 'words' (valid or invalid) are all the permutations of the word islet. These words are obtained by scrambling the letters in islet.