Letter on position 1 (v) changed: 18 words bill cill dill fill gill hill jill kill lill mill nill pill rill sill till will yill zill Letter on position 2 (i) changed: 1 word vell Letter on position 3 (l) changed: 3 words vial viol virl Letter on position 4 (l) changed: 2 words vild vile