Letter on position 1 (s) changed: 18 words bill cill dill fill gill hill jill kill lill mill nill pill rill till vill will yill zill Letter on position 2 (i) changed: 2 words sall sell Letter on position 3 (l) changed: 1 word sial Letter on position 4 (l) changed: 5 words sild sile silk silo silt