eraser reaser earser aerser raeser areser ersaer resaer esraer seraer rseaer sreaer easrer aesrer esarer searer aserer saerer raseer arseer rsaeer sraeer asreer sareer eraesr reaesr earesr aeresr raeesr areesr ereasr reeasr eerasr eerasr reeasr ereasr eaersr aeersr eearsr eearsr aeersr eaersr raeesr areesr reaesr eraesr aeresr earesr ersear resear esrear serear rseear sreear eresar reesar eersar eersar reesar eresar eserar seerar eesrar eesrar seerar eserar rseear sreear resear ersear serear esrear easerr aeserr esaerr seaerr aseerr saeerr eaesrr aeesrr eeasrr eeasrr aeesrr eaesrr esearr seearr eesarr eesarr seearr esearr aseerr saeerr aeserr easerr seaerr esaerr raseer arseer rsaeer sraeer asreer sareer raeser areser reaser eraser aerser earser rseaer sreaer resaer ersaer seraer esraer aserer saerer aesrer easrer searer esarer erasre reasre earsre aersre raesre aresre ersare resare esrare serare rseare sreare easrre aesrre esarre searre aserre saerre rasere arsere rsaere sraere asrere sarere erarse rearse earrse aerrse raerse arerse errase rerase errase rerase rrease rrease earrse aerrse erarse rearse arerse raerse rarese arrese rraese rraese arrese rarese ersrae resrae esrrae serrae rserae srerae errsae rersae errsae rersae rresae rresae esrrae serrae ersrae resrae srerae rserae rsreae srreae rrseae rrseae srreae rsreae easrre aesrre esarre searre aserre saerre earsre aersre erasre reasre aresre raesre esrare serare ersare resare sreare rseare asrere sarere arsere rasere sraere rsaere rasree arsree rsaree sraree asrree sarree rarsee arrsee rrasee rrasee arrsee rarsee rsraee srraee rrsaee rrsaee srraee rsraee asrree sarree arsree rasree sraree rsaree eraers reaers earers aerers raeers areers erears reears eerars eerars reears erears eaerrs aeerrs eearrs eearrs aeerrs eaerrs raeers areers reaers eraers aerers earers erares reares earres aerres raeres areres erraes reraes erraes reraes rreaes rreaes earres aerres erares reares areres raeres rarees arrees rraees rraees arrees rarees ereras reeras eerras eerras reeras ereras erreas rereas erreas rereas rreeas rreeas eerras eerras ereras reeras ereras reeras rereas erreas rreeas rreeas erreas rereas eaerrs aeerrs eearrs eearrs aeerrs eaerrs earers aerers eraers reaers areers raeers eerars eerars erears reears erears reears aerers earers areers raeers eraers reaers raeres areres reares erares aerres earres rarees arrees rraees rraees arrees rarees reraes erraes rreaes rreaes erraes reraes aerres earres areres raeres erares reares ersera resera esrera serera rseera sreera eresra reesra eersra eersra reesra eresra eserra seerra eesrra eesrra seerra eserra rseera sreera resera ersera serera esrera ersrea resrea esrrea serrea rserea srerea errsea rersea errsea rersea rresea rresea esrrea serrea ersrea resrea srerea rserea rsreea srreea rrseea rrseea srreea rsreea erersa reersa eerrsa eerrsa reersa erersa erresa reresa erresa reresa rreesa rreesa eerrsa eerrsa erersa reersa erersa reersa reresa erresa rreesa rreesa erresa reresa eserra seerra eesrra eesrra seerra eserra esrera serera ersera resera sreera rseera eersra eersra eresra reesra eresra reesra serera esrera sreera rseera ersera resera rserea srerea resrea ersrea serrea esrrea rsreea srreea rrseea rrseea srreea rsreea rersea errsea rresea rresea errsea rersea serrea esrrea srerea rserea ersrea resrea easerr aeserr esaerr seaerr aseerr saeerr eaesrr aeesrr eeasrr eeasrr aeesrr eaesrr esearr seearr eesarr eesarr seearr esearr aseerr saeerr aeserr easerr seaerr esaerr easrer aesrer esarer searer aserer saerer earser aerser eraser reaser areser raeser esraer seraer ersaer resaer sreaer rseaer asreer sareer arseer raseer sraeer rsaeer eaersr aeersr eearsr eearsr aeersr eaersr earesr aeresr eraesr reaesr areesr raeesr eerasr eerasr ereasr reeasr ereasr reeasr aeresr earesr areesr raeesr eraesr reaesr eserar seerar eesrar eesrar seerar eserar esrear serear ersear resear sreear rseear eersar eersar eresar reesar eresar reesar serear esrear sreear rseear ersear resear aserer saerer aesrer easrer searer esarer asreer sareer arseer raseer sraeer rsaeer aerser earser areser raeser eraser reaser seraer esraer sreaer rseaer ersaer resaer rasere arsere rsaere sraere asrere sarere raesre aresre reasre erasre aersre earsre rseare sreare resare ersare serare esrare aserre saerre aesrre easrre searre esarre rasree arsree rsaree sraree asrree sarree rarsee arrsee rrasee rrasee arrsee rarsee rsraee srraee rrsaee rrsaee srraee rsraee asrree sarree arsree rasree sraree rsaree raerse arerse rearse erarse aerrse earrse rarese arrese rraese rraese arrese rarese rerase errase rrease rrease errase rerase aerrse earrse arerse raerse erarse rearse rserae srerae resrae ersrae serrae esrrae rsreae srreae rrseae rrseae srreae rsreae rersae errsae rresae rresae errsae rersae serrae esrrae srerae rserae ersrae resrae aserre saerre aesrre easrre searre esarre asrere sarere arsere rasere sraere rsaere aersre earsre aresre raesre erasre reasre serare esrare sreare rseare ersare resare
Note: these 'words' (valid or invalid) are all the permutations of the word eraser. These words are obtained by scrambling the letters in eraser.