cairn acirn ciarn icarn aicrn iacrn carin acrin crain rcain arcin racin ciran icran crian rcian ircan rican aircn iarcn aricn raicn iracn riacn cainr acinr cianr icanr aicnr iacnr canir acnir cnair ncair ancir nacir cinar icnar cniar nciar incar nicar aincr iancr anicr naicr inacr niacr carni acrni crani rcani arcni racni canri acnri cnari ncari ancri nacri crnai rcnai cnrai ncrai rncai nrcai arnci ranci anrci narci rnaci nraci cirna icrna crina rcina ircna ricna cinra icnra cnira ncira incra nicra crnia rcnia cnria ncria rncia nrcia irnca rinca inrca nirca rnica nrica airnc iarnc arinc rainc iranc rianc ainrc ianrc anirc nairc inarc niarc arnic ranic anric naric rnaic nraic irnac rinac inrac nirac rniac nriac
Note: these 'words' (valid or invalid) are all the permutations of the word cairn. These words are obtained by scrambling the letters in cairn.