Letter on position 1 (b) changed: 13 words cooks dooks gooks hooks jooks kooks looks mooks nooks pooks rooks sooks zooks Letter on position 3 (o) changed: 6 words boaks bocks bonks borks bosks bouks Letter on position 4 (k) changed: 7 words boobs boohs bools booms boons boors boots Letter on position 5 (s) changed: 1 word booky