tacit atcit tcait ctait actit catit taict atict tiact itact aitct iatct tciat ctiat ticat itcat citat ictat acitt caitt aictt iactt ciatt icatt tacti atcti tcati ctati actti catti tatci attci ttaci ttaci attci tatci tctai cttai ttcai ttcai cttai tctai actti catti atcti tacti ctati tcati taitc atitc tiatc itatc aittc iattc tatic attic ttaic ttaic attic tatic titac ittac ttiac ttiac ittac titac aittc iattc atitc taitc itatc tiatc tcita ctita ticta itcta citta ictta tctia cttia ttcia ttcia cttia tctia titca ittca ttica ttica ittca titca citta ictta ctita tcita itcta ticta acitt caitt aictt iactt ciatt icatt actit catit atcit tacit ctait tcait aitct iatct atict taict itact tiact citat ictat ctiat tciat itcat ticat
Note: these 'words' (valid or invalid) are all the permutations of the word tacit. These words are obtained by scrambling the letters in tacit.