bairn abirn biarn ibarn aibrn iabrn barin abrin brain rbain arbin rabin biran ibran brian rbian irban riban airbn iarbn aribn raibn irabn riabn bainr abinr bianr ibanr aibnr iabnr banir abnir bnair nbair anbir nabir binar ibnar bniar nbiar inbar nibar ainbr ianbr anibr naibr inabr niabr barni abrni brani rbani arbni rabni banri abnri bnari nbari anbri nabri brnai rbnai bnrai nbrai rnbai nrbai arnbi ranbi anrbi narbi rnabi nrabi birna ibrna brina rbina irbna ribna binra ibnra bnira nbira inbra nibra brnia rbnia bnria nbria rnbia nrbia irnba rinba inrba nirba rniba nriba airnb iarnb arinb rainb iranb rianb ainrb ianrb anirb nairb inarb niarb arnib ranib anrib narib rnaib nraib irnab rinab inrab nirab rniab nriab
Note: these 'words' (valid or invalid) are all the permutations of the word bairn. These words are obtained by scrambling the letters in bairn.