traik rtaik tarik atrik ratik artik triak rtiak tirak itrak ritak irtak tairk atirk tiark itark aitrk iatrk raitk aritk riatk iratk airtk iartk traki rtaki tarki atrki ratki artki trkai rtkai tkrai ktrai rktai krtai takri atkri tkari ktari aktri katri rakti arkti rkati krati akrti karti trika rtika tirka itrka ritka irtka trkia rtkia tkria ktria rktia krtia tikra itkra tkira ktira iktra kitra rikta irkta rkita krita ikrta kirta taikr atikr tiakr itakr aitkr iatkr takir atkir tkair ktair aktir katir tikar itkar tkiar ktiar iktar kitar aiktr iaktr akitr kaitr ikatr kiatr raikt arikt riakt irakt airkt iarkt rakit arkit rkait krait akrit karit rikat irkat rkiat kriat ikrat kirat aikrt iakrt akirt kairt ikart kiart
Note: these 'words' (valid or invalid) are all the permutations of the word traik. These words are obtained by scrambling the letters in traik.