tncle ntcle tcnle ctnle nctle cntle tnlce ntlce tlnce ltnce nltce lntce tclne ctlne tlcne ltcne cltne lctne nclte cnlte nlcte lncte clnte lcnte tncel ntcel tcnel ctnel nctel cntel tnecl ntecl tencl etncl netcl entcl tcenl ctenl tecnl etcnl cetnl ectnl ncetl cnetl nectl enctl centl ecntl tnlec ntlec tlnec ltnec nltec lntec tnelc ntelc tenlc etnlc netlc entlc tlenc ltenc telnc etlnc letnc eltnc nletc lnetc neltc enltc lentc elntc tclen ctlen tlcen ltcen clten lcten tceln cteln tecln etcln cetln ectln tlecn ltecn telcn etlcn letcn eltcn cletn lcetn celtn ecltn lectn elctn nclet cnlet nlcet lncet clnet lcnet ncelt cnelt neclt enclt cenlt ecnlt nlect lnect nelct enlct lenct elnct clent lcent celnt eclnt lecnt elcnt
Note: these 'words' (valid or invalid) are all the permutations of the word tncle. These words are obtained by scrambling the letters in tncle.