carer acrer craer rcaer arcer racer caerr acerr cearr ecarr aecrr eacrr crear rcear cerar ecrar recar ercar arecr raecr aercr earcr reacr eracr carre acrre crare rcare arcre racre carre acrre crare rcare arcre racre crrae rcrae crrae rcrae rrcae rrcae arrce rarce arrce rarce rrace rrace caerr acerr cearr ecarr aecrr eacrr carer acrer craer rcaer arcer racer cerar ecrar crear rcear ercar recar aercr earcr arecr raecr eracr reacr crera rcera cerra ecrra recra ercra crrea rcrea crrea rcrea rrcea rrcea cerra ecrra crera rcera ercra recra rerca errca rreca rreca errca rerca arerc raerc aerrc earrc rearc erarc arrec rarec arrec rarec rraec rraec aerrc earrc arerc raerc erarc rearc rerac errac rreac rreac errac rerac
Note: these 'words' (valid or invalid) are all the permutations of the word carer. These words are obtained by scrambling the letters in carer.