hoasts ohasts haosts ahosts oahsts aohsts hosats ohsats hsoats shoats oshats sohats hasots ahsots hsaots shaots ashots sahots oashts aoshts osahts soahts asohts saohts hoatss ohatss haotss ahotss oahtss aohtss hotass ohtass htoass thoass othass tohass hatoss ahtoss htaoss thaoss athoss tahoss oathss aothss otahss toahss atohss taohss hostas ohstas hsotas shotas oshtas sohtas hotsas ohtsas htosas thosas othsas tohsas hstoas shtoas htsoas thsoas sthoas tshoas osthas sothas otshas toshas stohas tsohas hastos ahstos hsatos shatos ashtos sahtos hatsos ahtsos htasos thasos athsos tahsos hstaos shtaos htsaos thsaos sthaos tshaos asthos sathos atshos tashos stahos tsahos oasths aosths osaths soaths asoths saoths oatshs aotshs otashs toashs atoshs taoshs ostahs sotahs otsahs tosahs stoahs tsoahs astohs satohs atsohs tasohs staohs tsaohs hoasst ohasst haosst ahosst oahsst aohsst hosast ohsast hsoast shoast oshast sohast hasost ahsost hsaost shaost ashost sahost oashst aoshst osahst soahst asohst saohst hoasst ohasst haosst ahosst oahsst aohsst hosast ohsast hsoast shoast oshast sohast hasost ahsost hsaost shaost ashost sahost oashst aoshst osahst soahst asohst saohst hossat ohssat hsosat shosat oshsat sohsat hossat ohssat hsosat shosat oshsat sohsat hssoat shsoat hssoat shsoat sshoat sshoat osshat soshat osshat soshat ssohat ssohat hassot ahssot hsasot shasot ashsot sahsot hassot ahssot hsasot shasot ashsot sahsot hssaot shsaot hssaot shsaot sshaot sshaot asshot sashot asshot sashot ssahot ssahot oassht aossht osasht soasht asosht saosht oassht aossht osasht soasht asosht saosht ossaht sosaht ossaht sosaht ssoaht ssoaht assoht sasoht assoht sasoht ssaoht ssaoht hoatss ohatss haotss ahotss oahtss aohtss hotass ohtass htoass thoass othass tohass hatoss ahtoss htaoss thaoss athoss tahoss oathss aothss otahss toahss atohss taohss hoasts ohasts haosts ahosts oahsts aohsts hosats ohsats hsoats shoats oshats sohats hasots ahsots hsaots shaots ashots sahots oashts aoshts osahts soahts asohts saohts hotsas ohtsas htosas thosas othsas tohsas hostas ohstas hsotas shotas oshtas sohtas htsoas thsoas hstoas shtoas tshoas sthoas otshas toshas osthas sothas tsohas stohas hatsos ahtsos htasos thasos athsos tahsos hastos ahstos hsatos shatos ashtos sahtos htsaos thsaos hstaos shtaos tshaos sthaos atshos tashos asthos sathos tsahos stahos oatshs aotshs otashs toashs atoshs taoshs oasths aosths osaths soaths asoths saoths otsahs tosahs ostahs sotahs tsoahs stoahs atsohs tasohs astohs satohs tsaohs staohs hostsa ohstsa hsotsa shotsa oshtsa sohtsa hotssa ohtssa htossa thossa othssa tohssa hstosa shtosa htsosa thsosa sthosa tshosa osthsa sothsa otshsa toshsa stohsa tsohsa hossta ohssta hsosta shosta oshsta sohsta hossta ohssta hsosta shosta oshsta sohsta hssota shsota hssota shsota sshota sshota osshta soshta osshta soshta ssohta ssohta hotssa ohtssa htossa thossa othssa tohssa hostsa ohstsa hsotsa shotsa oshtsa sohtsa htsosa thsosa hstosa shtosa tshosa sthosa otshsa toshsa osthsa sothsa tsohsa stohsa hstsoa shtsoa htssoa thssoa sthsoa tshsoa hsstoa shstoa hsstoa shstoa sshtoa sshtoa htssoa thssoa hstsoa shtsoa tshsoa sthsoa stshoa tsshoa ssthoa ssthoa tsshoa stshoa ostsha sotsha otssha tossha stosha tsosha osstha sostha osstha sostha ssotha ssotha otssha tossha ostsha sotsha tsosha stosha stsoha tssoha sstoha sstoha tssoha stsoha hastso ahstso hsatso shatso ashtso sahtso hatsso ahtsso htasso thasso athsso tahsso hstaso shtaso htsaso thsaso sthaso tshaso asthso sathso atshso tashso stahso tsahso hassto ahssto hsasto shasto ashsto sahsto hassto ahssto hsasto shasto ashsto sahsto hssato shsato hssato shsato sshato sshato asshto sashto asshto sashto ssahto ssahto hatsso ahtsso htasso thasso athsso tahsso hastso ahstso hsatso shatso ashtso sahtso htsaso thsaso hstaso shtaso tshaso sthaso atshso tashso asthso sathso tsahso stahso hstsao shtsao htssao thssao sthsao tshsao hsstao shstao hsstao shstao sshtao sshtao htssao thssao hstsao shtsao tshsao sthsao stshao tsshao ssthao ssthao tsshao stshao astsho satsho atssho tassho stasho tsasho asstho sastho asstho sastho ssatho ssatho atssho tassho astsho satsho tsasho stasho stsaho tssaho sstaho sstaho tssaho stsaho oastsh aostsh osatsh soatsh asotsh saotsh oatssh aotssh otassh toassh atossh taossh ostash sotash otsash tosash stoash tsoash astosh satosh atsosh tasosh staosh tsaosh oassth aossth osasth soasth asosth saosth oassth aossth osasth soasth asosth saosth ossath sosath ossath sosath ssoath ssoath assoth sasoth assoth sasoth ssaoth ssaoth oatssh aotssh otassh toassh atossh taossh oastsh aostsh osatsh soatsh asotsh saotsh otsash tosash ostash sotash tsoash stoash atsosh tasosh astosh satosh tsaosh staosh ostsah sotsah otssah tossah stosah tsosah osstah sostah osstah sostah ssotah ssotah otssah tossah ostsah sotsah tsosah stosah stsoah tssoah sstoah sstoah tssoah stsoah astsoh satsoh atssoh tassoh stasoh tsasoh asstoh sastoh asstoh sastoh ssatoh ssatoh atssoh tassoh astsoh satsoh tsasoh stasoh stsaoh tssaoh sstaoh sstaoh tssaoh stsaoh
Note: these 'words' (valid or invalid) are all the permutations of the word hoasts. These words are obtained by scrambling the letters in hoasts.