recti ercti rceti creti ecrti certi retci ertci rteci treci etrci terci rctei crtei rtcei trcei ctrei tcrei ectri cetri etcri tecri cteri tceri recit ercit rceit creit ecrit cerit reict erict riect irect eirct ierct rciet criet ricet ircet ciret icret ecirt ceirt eicrt iecrt ciert icert retic ertic rteic treic etric teric reitc eritc rietc iretc eirtc iertc rtiec triec ritec irtec tirec itrec etirc teirc eitrc ietrc tierc iterc rctie crtie rtcie trcie ctrie tcrie rcite crite ricte ircte cirte icrte rtice trice ritce irtce tirce itrce ctire tcire citre ictre ticre itcre ectir cetir etcir tecir cteir tceir ecitr ceitr eictr iectr cietr icetr eticr teicr eitcr ietcr tiecr itecr ctier tcier citer icter ticer itcer
Note: these 'words' (valid or invalid) are all the permutations of the word recti. These words are obtained by scrambling the letters in recti.