Letter on position 1 (b) changed: 10 words conks gonks honks konks monks ponks tonks wonks yonks zonks Letter on position 2 (o) changed: 3 words banks binks bunks Letter on position 3 (n) changed: 6 words boaks bocks books borks bosks bouks Letter on position 4 (k) changed: 4 words bonds bones bongs bonus