Letter on position 1 (w) changed: 18 words bill cill dill fill gill hill jill kill lill mill nill pill rill sill till vill yill zill Letter on position 2 (i) changed: 3 words wall well wull Letter on position 3 (l) changed: 1 word wiel Letter on position 4 (l) changed: 5 words wild wile wili wilt wily