curst ucrst crust rcust urcst rucst cusrt ucsrt csurt scurt uscrt sucrt crsut rcsut csrut scrut rscut srcut ursct rusct usrct surct rsuct sruct curts ucrts cruts rcuts urcts ructs cutrs uctrs cturs tcurs utcrs tucrs crtus rctus ctrus tcrus rtcus trcus urtcs rutcs utrcs turcs rtucs trucs custr ucstr csutr scutr usctr suctr cutsr uctsr ctusr tcusr utcsr tucsr cstur sctur ctsur tcsur stcur tscur ustcr sutcr utscr tuscr stucr tsucr crstu rcstu csrtu scrtu rsctu srctu crtsu rctsu ctrsu tcrsu rtcsu trcsu cstru sctru ctsru tcsru stcru tscru rstcu srtcu rtscu trscu strcu tsrcu urstc rustc usrtc surtc rsutc srutc urtsc rutsc utrsc tursc rtusc trusc ustrc sutrc utsrc tusrc sturc tsurc rstuc srtuc rtsuc trsuc struc tsruc
Note: these 'words' (valid or invalid) are all the permutations of the word curst. These words are obtained by scrambling the letters in curst.