Letter on position 1 (t) changed: 15 words aits bits cits dits fits gits hits kits lits nits pits rits sits wits zits Letter on position 2 (i) changed: 4 words tats tets tots tuts Letter on position 3 (t) changed: 7 words tics tids ties tigs tils tins tips Letter on position 4 (s) changed: 2 words tite titi