cruet rcuet curet ucret rucet urcet creut rceut cerut ecrut recut ercut cuert ucert ceurt ecurt uecrt eucrt ruect urect reuct eruct uerct eurct crute rcute curte ucrte ructe urcte crtue rctue ctrue tcrue rtcue trcue cutre uctre cture tcure utcre tucre rutce urtce rtuce truce utrce turce cretu rcetu certu ecrtu rectu erctu crteu rcteu ctreu tcreu rtceu trceu cetru ectru cteru tceru etcru tecru retcu ertcu rtecu trecu etrcu tercu cuetr ucetr ceutr ecutr uectr euctr cuter ucter ctuer tcuer utcer tucer cetur ectur cteur tceur etcur tecur uetcr eutcr utecr tuecr etucr teucr ruetc uretc reutc erutc uertc eurtc rutec urtec rtuec truec utrec turec retuc ertuc rteuc treuc etruc teruc uetrc eutrc uterc tuerc eturc teurc
Note: these 'words' (valid or invalid) are all the permutations of the word cruet. These words are obtained by scrambling the letters in cruet.