mater amter mtaer tmaer atmer tamer maetr ametr meatr ematr aemtr eamtr mtear tmear metar emtar temar etmar atemr taemr aetmr eatmr teamr etamr matre amtre mtare tmare atmre tamre marte amrte mrate rmate armte ramte mtrae tmrae mrtae rmtae trmae rtmae atrme tarme artme ratme trame rtame maert amert meart emart aemrt eamrt maret amret mraet rmaet armet ramet merat emrat mreat rmeat ermat remat aermt earmt aremt raemt eramt reamt mtera tmera metra emtra temra etmra mtrea tmrea mrtea rmtea trmea rtmea merta emrta mreta rmeta ermta remta terma etrma trema rtema ertma retma aterm taerm aetrm eatrm tearm etarm atrem tarem artem ratem traem rtaem aertm eartm aretm raetm eratm reatm teram etram tream rteam ertam retam
Note: these 'words' (valid or invalid) are all the permutations of the word mater. These words are obtained by scrambling the letters in mater.