nwash wnash nawsh anwsh wansh awnsh nwsah wnsah nswah snwah wsnah swnah naswh answh nsawh snawh asnwh sanwh wasnh awsnh wsanh swanh aswnh sawnh nwahs wnahs nawhs anwhs wanhs awnhs nwhas wnhas nhwas hnwas whnas hwnas nahws anhws nhaws hnaws ahnws hanws wahns awhns whans hwans ahwns hawns nwsha wnsha nswha snwha wsnha swnha nwhsa wnhsa nhwsa hnwsa whnsa hwnsa nshwa snhwa nhswa hnswa shnwa hsnwa wshna swhna whsna hwsna shwna hswna nashw anshw nsahw snahw asnhw sanhw nahsw anhsw nhasw hnasw ahnsw hansw nshaw snhaw nhsaw hnsaw shnaw hsnaw ashnw sahnw ahsnw hasnw shanw hsanw washn awshn wsahn swahn aswhn sawhn wahsn awhsn whasn hwasn ahwsn hawsn wshan swhan whsan hwsan shwan hswan ashwn sahwn ahswn haswn shawn hsawn
Note: these 'words' (valid or invalid) are all the permutations of the word nwash. These words are obtained by scrambling the letters in nwash.