ardeb radeb adreb dareb rdaeb draeb aredb raedb aerdb eardb readb eradb aderb daerb aedrb eadrb dearb edarb rdeab dreab redab erdab derab edrab ardbe radbe adrbe darbe rdabe drabe arbde rabde abrde barde rbade brade adbre dabre abdre badre dbare bdare rdbae drbae rbdae brdae dbrae bdrae arebd raebd aerbd earbd reabd erabd arbed rabed abred bared rbaed braed aebrd eabrd aberd baerd ebard beard rebad erbad rbead bread ebrad berad adebr daebr aedbr eadbr deabr edabr adber daber abder bader dbaer bdaer aebdr eabdr abedr baedr ebadr beadr debar edbar dbear bdear ebdar bedar rdeba dreba redba erdba derba edrba rdbea drbea rbdea brdea dbrea bdrea rebda erbda rbeda breda ebrda berda debra edbra dbera bdera ebdra bedra
Note: these 'words' (valid or invalid) are all the permutations of the word ardeb. These words are obtained by scrambling the letters in ardeb.