horse ohrse hrose rhose orhse rohse hosre ohsre hsore shore oshre sohre hrsoe rhsoe hsroe shroe rshoe srhoe orshe roshe osrhe sorhe rsohe srohe hores ohres hroes rhoes orhes rohes hoers ohers heors ehors oehrs eohrs hreos rheos heros ehros rehos erhos orehs roehs oerhs eorhs reohs erohs hoser ohser hsoer shoer osher soher hoesr ohesr heosr ehosr oehsr eohsr hseor sheor hesor ehsor sehor eshor osehr soehr oeshr eoshr seohr esohr hrseo rhseo hsreo shreo rsheo srheo hreso rheso herso ehrso rehso erhso hsero shero hesro ehsro sehro eshro rseho sreho resho ersho serho esrho orseh roseh osreh soreh rsoeh sroeh oresh roesh oersh eorsh reosh erosh oserh soerh oesrh eosrh seorh esorh rseoh sreoh resoh ersoh seroh esroh
Note: these 'words' (valid or invalid) are all the permutations of the word horse. These words are obtained by scrambling the letters in horse.