wairs awirs wiars iwars aiwrs iawrs waris awris wrais rwais arwis rawis wiras iwras wrias rwias irwas riwas airws iarws ariws raiws iraws riaws waisr awisr wiasr iwasr aiwsr iawsr wasir awsir wsair swair aswir sawir wisar iwsar wsiar swiar iswar siwar aiswr iaswr asiwr saiwr isawr siawr warsi awrsi wrasi rwasi arwsi rawsi wasri awsri wsari swari aswri sawri wrsai rwsai wsrai swrai rswai srwai arswi raswi asrwi sarwi rsawi srawi wirsa iwrsa wrisa rwisa irwsa riwsa wisra iwsra wsira swira iswra siwra wrsia rwsia wsria swria rswia srwia irswa riswa isrwa sirwa rsiwa sriwa airsw iarsw arisw raisw irasw riasw aisrw iasrw asirw sairw isarw siarw arsiw rasiw asriw sariw rsaiw sraiw irsaw risaw israw siraw rsiaw sriaw
Note: these 'words' (valid or invalid) are all the permutations of the word wairs. These words are obtained by scrambling the letters in wairs.