tides itdes tdies dties idtes dites tieds iteds teids etids ietds eitds tdeis dteis tedis etdis detis edtis idets diets iedts eidts deits edits tidse itdse tdise dtise idtse ditse tisde itsde tside stide istde sitde tdsie dtsie tsdie stdie dstie sdtie idste diste isdte sidte dsite sdite tiesd itesd teisd etisd ietsd eitsd tised itsed tsied stied isted sited tesid etsid tseid steid estid setid iestd eistd isetd sietd esitd seitd tdesi dtesi tedsi etdsi detsi edtsi tdsei dtsei tsdei stdei dstei sdtei tesdi etsdi tsedi stedi estdi setdi desti edsti dseti sdeti esdti sedti idest diest iedst eidst deist edist idset diset isdet sidet dsiet sdiet iesdt eisdt isedt siedt esidt seidt desit edsit dseit sdeit esdit sedit
Note: these 'words' (valid or invalid) are all the permutations of the word tides. These words are obtained by scrambling the letters in tides.