Letter on position 1 (c) changed: 9 words balls falls galls halls lalls malls palls talls walls Letter on position 2 (a) changed: 4 words cells cills colls culls Letter on position 3 (l) changed: 2 words carls cauls Letter on position 4 (l) changed: 5 words calfs calks calms calos calps Letter on position 5 (s) changed: 1 word calla