horns ohrns hrons rhons orhns rohns honrs ohnrs hnors nhors onhrs nohrs hrnos rhnos hnros nhros rnhos nrhos ornhs ronhs onrhs norhs rnohs nrohs horsn ohrsn hrosn rhosn orhsn rohsn hosrn ohsrn hsorn shorn oshrn sohrn hrson rhson hsron shron rshon srhon orshn roshn osrhn sorhn rsohn srohn honsr ohnsr hnosr nhosr onhsr nohsr hosnr ohsnr hsonr shonr oshnr sohnr hnsor nhsor hsnor shnor nshor snhor onshr noshr osnhr sonhr nsohr snohr hrnso rhnso hnrso nhrso rnhso nrhso hrsno rhsno hsrno shrno rshno srhno hnsro nhsro hsnro shnro nshro snhro rnsho nrsho rsnho srnho nsrho snrho ornsh ronsh onrsh norsh rnosh nrosh orsnh rosnh osrnh sornh rsonh sronh onsrh nosrh osnrh sonrh nsorh snorh rnsoh nrsoh rsnoh srnoh nsroh snroh
Note: these 'words' (valid or invalid) are all the permutations of the word horns. These words are obtained by scrambling the letters in horns.