adder dader adder dader ddaer ddaer adedr daedr aeddr eaddr deadr edadr adedr daedr aeddr eaddr deadr edadr ddear ddear dedar eddar dedar eddar addre dadre addre dadre ddare ddare adrde darde ardde radde drade rdade adrde darde ardde radde drade rdade ddrae ddrae drdae rddae drdae rddae aderd daerd aedrd eadrd deard edard adred dared arded raded draed rdaed aerdd eardd aredd raedd eradd readd derad edrad dread rdead erdad redad aderd daerd aedrd eadrd deard edard adred dared arded raded draed rdaed aerdd eardd aredd raedd eradd readd derad edrad dread rdead erdad redad ddera ddera dedra eddra dedra eddra ddrea ddrea drdea rddea drdea rddea derda edrda dreda rdeda erdda redda derda edrda dreda rdeda erdda redda
Note: these 'words' (valid or invalid) are all the permutations of the word adder. These words are obtained by scrambling the letters in adder.