iciest ciiest iicest iicest ciiest iciest iceist cieist iecist eicist ceiist eciist iiecst iiecst ieicst eiicst ieicst eiicst cieist iceist ceiist eciist iecist eicist iciset ciiset iicset iicset ciiset iciset icsiet cisiet isciet siciet csiiet sciiet iiscet iiscet isicet siicet isicet siicet cisiet icsiet csiiet sciiet isciet siciet icesit ciesit iecsit eicsit ceisit ecisit icseit ciseit isceit siceit csieit scieit iescit eiscit isecit siecit esicit seicit cesiit ecsiit cseiit sceiit esciit seciit iiesct iiesct ieisct eiisct ieisct eiisct iisect iisect isiect siiect isiect siiect iesict eisict iseict sieict esiict seiict iesict eisict iseict sieict esiict seiict ciesit icesit ceisit ecisit iecsit eicsit ciseit icseit csieit scieit isceit siceit cesiit ecsiit cseiit sceiit esciit seciit iescit eiscit isecit siecit esicit seicit iciets ciiets iicets iicets ciiets iciets iceits cieits iecits eicits ceiits eciits iiects iiects ieicts eiicts ieicts eiicts cieits iceits ceiits eciits iecits eicits icites ciites iictes iictes ciites icites icties cities itcies ticies ctiies tciies iitces iitces itices tiices itices tiices cities icties ctiies tciies itcies ticies icetis cietis iectis eictis ceitis ecitis icteis citeis itceis ticeis ctieis tcieis ietcis eitcis itecis tiecis eticis teicis cetiis ectiis cteiis tceiis etciis teciis iietcs iietcs ieitcs eiitcs ieitcs eiitcs iitecs iitecs itiecs tiiecs itiecs tiiecs ietics eitics iteics tieics etiics teiics ietics eitics iteics tieics etiics teiics cietis icetis ceitis ecitis iectis eictis citeis icteis ctieis tcieis itceis ticeis cetiis ectiis cteiis tceiis etciis teciis ietcis eitcis itecis tiecis eticis teicis iciste ciiste iicste iicste ciiste iciste icsite cisite iscite sicite csiite sciite iiscte iiscte isicte siicte isicte siicte cisite icsite csiite sciite iscite sicite icitse ciitse iictse iictse ciitse icitse ictise citise itcise ticise ctiise tciise iitcse iitcse iticse tiicse iticse tiicse citise ictise ctiise tciise itcise ticise icstie cistie isctie sictie csitie scitie ictsie citsie itcsie ticsie ctisie tcisie istcie sitcie itscie tiscie sticie tsicie cstiie sctiie ctsiie tcsiie stciie tsciie iistce iistce isitce siitce isitce siitce iitsce iitsce itisce tiisce itisce tiisce istice sitice itsice tisice stiice tsiice istice sitice itsice tisice stiice tsiice cistie icstie csitie scitie isctie sictie citsie ictsie ctisie tcisie itcsie ticsie cstiie sctiie ctsiie tcsiie stciie tsciie istcie sitcie itscie tiscie sticie tsicie icesti ciesti iecsti eicsti ceisti ecisti icseti ciseti isceti siceti csieti scieti iescti eiscti isecti siecti esicti seicti cesiti ecsiti cseiti sceiti esciti seciti icetsi cietsi iectsi eictsi ceitsi ecitsi ictesi citesi itcesi ticesi ctiesi tciesi ietcsi eitcsi itecsi tiecsi eticsi teicsi cetisi ectisi cteisi tceisi etcisi tecisi icstei cistei isctei sictei csitei scitei ictsei citsei itcsei ticsei ctisei tcisei istcei sitcei itscei tiscei sticei tsicei cstiei sctiei ctsiei tcsiei stciei tsciei iestci eistci isetci sietci esitci seitci ietsci eitsci itesci tiesci etisci teisci isteci siteci itseci tiseci stieci tsieci estici setici etsici tesici steici tseici cestii ecstii csetii scetii esctii sectii cetsii ectsii ctesii tcesii etcsii tecsii csteii scteii ctseii tcseii stceii tsceii estcii setcii etscii tescii stecii tsecii iiestc iiestc ieistc eiistc ieistc eiistc iisetc iisetc isietc siietc isietc siietc iesitc eisitc iseitc sieitc esiitc seiitc iesitc eisitc iseitc sieitc esiitc seiitc iietsc iietsc ieitsc eiitsc ieitsc eiitsc iitesc iitesc itiesc tiiesc itiesc tiiesc ietisc eitisc iteisc tieisc etiisc teiisc ietisc eitisc iteisc tieisc etiisc teiisc iistec iistec isitec siitec isitec siitec iitsec iitsec itisec tiisec itisec tiisec istiec sitiec itsiec tisiec stiiec tsiiec istiec sitiec itsiec tisiec stiiec tsiiec iestic eistic isetic sietic esitic seitic ietsic eitsic itesic tiesic etisic teisic isteic siteic itseic tiseic stieic tsieic estiic setiic etsiic tesiic steiic tseiic iestic eistic isetic sietic esitic seitic ietsic eitsic itesic tiesic etisic teisic isteic siteic itseic tiseic stieic tsieic estiic setiic etsiic tesiic steiic tseiic ciesti icesti ceisti ecisti iecsti eicsti ciseti icseti csieti scieti isceti siceti cesiti ecsiti cseiti sceiti esciti seciti iescti eiscti isecti siecti esicti seicti cietsi icetsi ceitsi ecitsi iectsi eictsi citesi ictesi ctiesi tciesi itcesi ticesi cetisi ectisi cteisi tceisi etcisi tecisi ietcsi eitcsi itecsi tiecsi eticsi teicsi cistei icstei csitei scitei isctei sictei citsei ictsei ctisei tcisei itcsei ticsei cstiei sctiei ctsiei tcsiei stciei tsciei istcei sitcei itscei tiscei sticei tsicei cestii ecstii csetii scetii esctii sectii cetsii ectsii ctesii tcesii etcsii tecsii csteii scteii ctseii tcseii stceii tsceii estcii setcii etscii tescii stecii tsecii iestci eistci isetci sietci esitci seitci ietsci eitsci itesci tiesci etisci teisci isteci siteci itseci tiseci stieci tsieci estici setici etsici tesici steici tseici
Note: these 'words' (valid or invalid) are all the permutations of the word iciest. These words are obtained by scrambling the letters in iciest.