Letter on position 1 (t) changed: 5 words brank crank drank frank prank Letter on position 2 (r) changed: 2 words thank twank Letter on position 3 (a) changed: 2 words tronk trunk Letter on position 4 (n) changed: 2 words track traik Letter on position 5 (k) changed: 3 words tranq trans trant