Letter on position 1 (f) changed: 10 words cains gains hains kains mains pains rains sains tains wains Letter on position 2 (a) changed: 1 word foins Letter on position 3 (i) changed: 2 words fauns fawns Letter on position 4 (n) changed: 3 words faiks fails fairs Letter on position 5 (s) changed: 2 words faine faint