tired itred tried rtied irted rited tierd iterd teird etird ietrd eitrd treid rteid terid etrid retid ertid iretd rietd iertd eirtd reitd eritd tirde itrde tride rtide irtde ritde tidre itdre tdire dtire idtre ditre trdie rtdie tdrie dtrie rdtie drtie irdte ridte idrte dirte rdite drite tiedr itedr teidr etidr ietdr eitdr tider itder tdier dtier idter diter tedir etdir tdeir dteir edtir detir iedtr eidtr idetr dietr editr deitr tredi rtedi terdi etrdi retdi ertdi trdei rtdei tdrei dtrei rdtei drtei tedri etdri tderi dteri edtri detri redti erdti rdeti dreti edrti derti iredt riedt ierdt eirdt reidt eridt irdet ridet idret diret rdiet driet iedrt eidrt idert diert edirt deirt redit erdit rdeit dreit edrit derit
Note: these 'words' (valid or invalid) are all the permutations of the word tired. These words are obtained by scrambling the letters in tired.