artic ratic atric taric rtaic traic aritc raitc airtc iartc riatc iratc atirc tairc aitrc iatrc tiarc itarc rtiac triac ritac irtac tirac itrac artci ratci atrci tarci rtaci traci arcti racti acrti carti rcati crati atcri tacri actri catri tcari ctari rtcai trcai rctai crtai tcrai ctrai arict raict airct iarct riact iract arcit racit acrit carit rcait crait aicrt iacrt acirt cairt icart ciart ricat ircat rciat criat icrat cirat aticr taicr aitcr iatcr tiacr itacr atcir tacir actir catir tcair ctair aictr iactr acitr caitr icatr ciatr ticar itcar tciar ctiar ictar citar rtica trica ritca irtca tirca itrca rtcia trcia rctia crtia tcria ctria ricta ircta rcita crita icrta cirta ticra itcra tcira ctira ictra citra
Note: these 'words' (valid or invalid) are all the permutations of the word artic. These words are obtained by scrambling the letters in artic.