Letter on position 1 (h) changed: 9 words balls calls falls galls lalls malls palls talls walls Letter on position 2 (a) changed: 3 words hells hills hulls Letter on position 3 (l) changed: 3 words hails harls hauls Letter on position 4 (l) changed: 5 words hales halfs halms halos halts Letter on position 5 (s) changed: 1 word hallo