cyadi ycadi caydi acydi yacdi aycdi cydai ycdai cdyai dcyai ydcai dycai cadyi acdyi cdayi dcayi adcyi dacyi yadci aydci ydaci dyaci adyci dayci cyaid ycaid cayid acyid yacid aycid cyiad yciad ciyad icyad yicad iycad caiyd aciyd ciayd icayd aicyd iacyd yaicd ayicd yiacd iyacd aiycd iaycd cydia ycdia cdyia dcyia ydcia dycia cyida ycida ciyda icyda yicda iycda cdiya dciya cidya icdya dicya idcya ydica dyica yidca iydca diyca idyca cadiy acdiy cdaiy dcaiy adciy daciy caidy acidy ciady icady aicdy iacdy cdiay dciay ciday icday dicay idcay adicy daicy aidcy iadcy diacy idacy yadic aydic ydaic dyaic adyic dayic yaidc ayidc yiadc iyadc aiydc iaydc ydiac dyiac yidac iydac diyac idyac adiyc daiyc aidyc iadyc diayc idayc
Note: these 'words' (valid or invalid) are all the permutations of the word cyadi. These words are obtained by scrambling the letters in cyadi.