Letter on position 1 (b) changed: 9 words cooking dooking hooking jooking kooking looking pooking rooking sooking Letter on position 2 (o) changed: 1 word broking Letter on position 3 (o) changed: 4 words boaking bocking bonking borking Letter on position 4 (k) changed: 7 words boobing boohing booling booming boosing booting boozing